Mn–O system

352 accepted literature values from 2 paper(s) (experimental 172, model 162, unspecified 18); 2 calculated phase diagram(s). 12 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (16) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	172
model	162
unspecified	18

Accepted values by property group
Property group	Values
invariant reaction	53
phase transition	13
formation	103
mixing / partial	1
heat capacity / entropy / enthalpy	69
model expression	113

Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Assessments with a calculated phase diagram
TDB file	Assessment	SHA-256	Links
MnO-03Gru-LB.tdb	A.N. Grundy, B. Hallstedt, L.J. Gauckler, J. Phase Equilib., 24, 21-39(2003). doi:10.1007/s11669-003-0004-6	`2f59cdf668abb9e9b63c4e51c301e56a79ea939461bfe9b832d2f4fccf8acab9`	viewer · TDB · JSON
MnO-10Kje.tdb	L. Kjellqvist, M. Selleby, J. Phase Equilib. Diffus., 31, 113-34(2010). doi:10.1007/s11669-009-9643-6	`bd1f5b2a6c1bd76ecf6bb6078f7eb9b9f0ebd2b5d2cd94ace3139aed8273e1ea`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
MnO-03Gru-LB.tdb	2341.85	GAS (x(O) 7.000e-5) + ION#2 (x(O) 0.01139) + ION (x(O) 0.46845)
MnO-03Gru-LB.tdb	2057.03	ION (x(O) 0.00598) + ION#2 (x(O) 0.47748) + B1_OXIDE (x(O) 0.50019)
MnO-03Gru-LB.tdb	1882.41	ION (x(O) 0.5525) + MN3O4_H11 (x(O) 0.57143) + GAS (x(O) 1)
MnO-03Gru-LB.tdb	1518.46	BCC_A2 (x(O) 0) + ION (x(O) 3.600e-4) + B1_OXIDE (x(O) 0.50002)
MnO-03Gru-LB.tdb	1503.51	BCC_A2 (x(O) 0) + LIQUID (x(O) 0) + FCC_A1 (x(O) 0)
MnO-03Gru-LB.tdb	1442.97	MN3O4_H11 (x(O) 0.57143) + MN3O4_ALPHA (x(O) 0.57143) + GAS (x(O) 1)
MnO-03Gru-LB.tdb	1411.01	FCC_A1 (x(O) 0) + BCC_A2 (x(O) 0) + B1_OXIDE (x(O) 0.50001)
MnO-03Gru-LB.tdb	1359.99	CUB_A13 (x(O) 0) + FCC_A1 (x(O) 0) + B1_OXIDE (x(O) 0.50001)
MnO-03Gru-LB.tdb	1237.26	MN3O4_ALPHA (x(O) 0.57143) + MN2O3_D53 (x(O) 0.6) + GAS (x(O) 1)
MnO-03Gru-LB.tdb	980	CUB_A13 (x(O) 0) + CBCC_A12 (x(O) 0) + B1_OXIDE (x(O) 0.5)
MnO-10Kje.tdb	2341.85	GAS (x(O) 7.000e-5) + ION#2 (x(O) 0.01139) + ION (x(O) 0.46842)
MnO-10Kje.tdb	2056.71	ION (x(O) 0.00598) + ION#2 (x(O) 0.47748) + B1_OXIDE (x(O) 0.50019)
MnO-10Kje.tdb	1878.72	ION (x(O) 0.55266) + SPINEL_H11 (x(O) 0.57144) + GAS (x(O) 1)
MnO-10Kje.tdb	1833.45	B1_OXIDE (x(O) 0.53321) + ION (x(O) 0.54684) + SPINEL_H11 (x(O) 0.57123)
MnO-10Kje.tdb	1518.46	BCC_A2 (x(O) 0) + ION (x(O) 3.600e-4) + B1_OXIDE (x(O) 0.50002)
MnO-10Kje.tdb	1443.79	SPINEL_H11 (x(O) 0.57148) + MN3O4_A (x(O) 0.57161) + GAS (x(O) 1)
MnO-10Kje.tdb	1442.89	B1_OXIDE (x(O) 0.5104) + MN3O4_A (x(O) 0.57132) + SPINEL_H11 (x(O) 0.57139)
MnO-10Kje.tdb	1411.01	FCC_A1 (x(O) 0) + BCC_A2 (x(O) 0) + B1_OXIDE (x(O) 0.50001)
MnO-10Kje.tdb	1359.99	CUB_A13 (x(O) 0) + FCC_A1 (x(O) 0) + B1_OXIDE (x(O) 0.50001)
MnO-10Kje.tdb	980	CUB_A13 (x(O) 0) + CBCC_A12 (x(O) 0) + B1_OXIDE (x(O) 0.5)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Mn–O system (53)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
2158	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Schurmann 1984 doi	Table 2, p. 4, row 18 report
2148	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Fischer 1961 doi	Table 2, p. 4, row 13 report
2148	monotectic: L1 + L2 + MnO	MnO: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Schurmann 1984 doi	Table 2, p. 4, row 4 report
2124	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	model	[1] Grundy 2003	Table 2, p. 4, row 21 report
2123	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Glasser 1958 doi	Table 2, p. 4, row 15 report
2123	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Tromel 1976	Table 2, p. 4, row 17 report
2115	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Schenck 1964 doi	Table 2, p. 4, row 19 report
2063	monotectic: L1 + L2 + MnO	MnO: Mn 0.5, O 0.5; Liquid: O 0.495	experimental	[1] Grundy 2003 cites Tromel 1976	Table 2, p. 4, row 3 report
2057	monotectic: L1 + L2 + MnO	MnO: Mn 0.5, O 0.5; Liquid: O 0.477	model	[1] Grundy 2003	Table 2, p. 4, row 5 report
2033	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Hed 1967 doi	Table 2, p. 4, row 16 report
2023	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Schenck 1957 doi	Table 2, p. 4, row 14 report
1973	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Benedicks 1930	Table 2, p. 4, row 11 report
1863	β-Mn3O4 -> Liq + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Von 1937	Table 2, p. 4, row 37 report
1858	congruent melting: MnO -> Liquid	MnO: Mn 0.5, O 0.5; Liquid: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Andrew 1931	Table 2, p. 4, row 12 report
1853	β-Mn3O4 -> Liq + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Tromel 1976	Table 2, p. 4, row 42 report
1846	β-Mn3O4 -> Liq + O2(g) (in air/O2)	Liquid: O 0.548	model	[1] Grundy 2003	Table 2, p. 4, row 44 report
1840	β-Mn3O4 -> Liq + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Hahn 1960 doi	Table 2, p. 4, row 38 report
1838	β-Mn3O4 -> Liq + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Hed 1967 doi	Table 2, p. 4, row 41 report
1835	eutectic: L2 + β-Mn3O4 + MnO	MnO: Mn 0.5, O 0.5; Liquid: O 0.546	model	[1] Grundy 2003	Table 2, p. 4, row 10 report
1835	β-Mn3O4 -> Liq + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Van 1958	Table 2, p. 4, row 39 report
1835	β-Mn3O4 -> Liq + O2(g) (in air/O2)		unspecified	[1] Grundy 2003 cites Pankratz 1982	Table 2, p. 4, row 43 report
1833	eutectic: L2 + β-Mn3O4 + MnO	MnO: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Schmahl 1969 doi	Table 2, p. 4, row 8 report
1833	eutectic: L2 + β-Mn3O4 + MnO	MnO: Mn 0.5, O 0.5; Liquid: O 0.54	experimental	[1] Grundy 2003 cites Tromel 1976	Table 2, p. 4, row 9 report
1833	β-Mn3O4 -> Liq + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Schmahl 1969 doi	Table 2, p. 4, row 40 report
1828	eutectic: L2 + β-Mn3O4 + MnO	MnO: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Hed 1967 doi	Table 2, p. 4, row 7 report
1813	eutectic: L2 + β-Mn3O4 + MnO	MnO: Mn 0.5, O 0.5	experimental	[1] Grundy 2003 cites Hahn 1960 doi	Table 2, p. 4, row 6 report
1518	Mn + L1 + MnO	MnO: Mn 0.5, O 0.5; Liquid: O 3.600e-4	model	[1] Grundy 2003	Table 2, p. 4, row 2 report
1515	Mn + L1 + MnO	MnO: Mn 0.5, O 0.5; Liquid: O 1.000e-4	experimental	[1] Grundy 2003 cites Schenck 1964 doi	Table 2, p. 4, row 1 report
1473	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Schmier 1966 doi	Table 2, p. 4, row 26 report
1450	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Ramano 1973	Table 2, p. 4, row 28 report
1449.2	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Keller 1985 doi	Table 2, p. 4, row 33 report
1445	α-Mn3O4-β-Mn3O4		unspecified	[1] Grundy 2003 cites Pankratz 1982	Table 2, p. 4, row 34 report
1445	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Southard 1942 doi	Table 2, p. 4, row 22 report
1443	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Irani 1962 doi	Table 2, p. 4, row 25 report
1443	α-Mn3O4-β-Mn3O4		model	[1] Grundy 2003	Table 2, p. 4, row 36 report
1443	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites McMurdie 1948 doi	Table 2, p. 4, row 35 report
1433	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Van 1958	Table 2, p. 4, row 24 report
1430	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Metselaar 1981 doi	Table 2, p. 4, row 30 report
1429.2	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Keller 1985 doi	Table 2, p. 4, row 32 report
1407.6	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Keller 1985 doi	Table 2, p. 4, row 31 report
1403	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Driessens 1967 doi	Table 2, p. 4, row 27 report
1368	α-Mn3O4-β-Mn3O4		experimental	[1] Grundy 2003 cites Tromel 1976	Table 2, p. 4, row 29 report
1350	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		unspecified	[1] Grundy 2003 cites Pankratz 1982	Table 2, p. 4, row 52 report
1243	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Kissinger 1956	Table 2, p. 4, row 47 report
1223	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites McMurdie 1948 doi	Table 2, p. 4, row 53 report
1213	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Meyer 1908 doi	Table 2, p. 4, row 45 report
1157.4	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Ingraham 1966 doi	Table 2, p. 4, row 50 report
1154	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Schmahl 1963 doi	Table 2, p. 4, row 49 report
1153	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		model	[1] Grundy 2003	Table 2, p. 4, row 54 report
1150	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Hahn 1960 doi	Table 2, p. 4, row 46 report
1144	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Schwerdtfeger 1967	Table 2, p. 4, row 51 report
958	Mn2O3 -> α-Mn3O4 + O2(g) (in air/O2)		experimental	[1] Grundy 2003 cites Klingsberg 1960	Table 2, p. 4, row 48 report
800	MnO2 -> Mn2O3 + O2(g) (in air/O2)	MnO2: O 0.666667; Mn2O3: O 0.6	unspecified	[1] Grundy 2003 cites Pankratz 1982	Table 2, p. 5, row 5 report

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Mn–O system (103)
Phase	Compound	Value	T (K)	Class	MP DFT (kJ/mol-atom)	OQMD DFT (kJ/mol-atom)	Source	Location
Bixbyite (Mn2O3)	Mn2O3	-194.854 kJ/mol-atom	298.15	experimental	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Siemonsen 1939	Table 11, p. 16, row 25 report
Bixbyite (Mn2O3)	Mn2O3	-194.77 kJ/mol-atom	298.15	experimental	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Ulich 1940 doi	Table 11, p. 16, row 26 report
Bixbyite (Mn2O3)	Mn2O3	-192.518 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003	Table 11, p. 16, row 33 report
Bixbyite (Mn2O3)	Mn2O3	-191.922 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Pankratz 1982	Table 11, p. 16, row 30 report
Bixbyite (Mn2O3)	Mn2O3	-191.922 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Brewer 1953 doi	Table 11, p. 16, row 27 report
Bixbyite (Mn2O3)	Mn2O3	-191.8 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Knacke 1991	Table 11, p. 16, row 31 report
Bixbyite (Mn2O3)	Mn2O3	-191.62 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Kubaschewski 1993	Table 11, p. 16, row 32 report
Bixbyite (Mn2O3)	Mn2O3	-191.504 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Zordan 1968 doi	Table 11, p. 16, row 29 report
Bixbyite (Mn2O3)	Mn2O3	-191.254 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Mah 1960	Table 11, p. 16, row 28 report
Hausmannite (Mn3O4)	Mn3O4	-206.35 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Roth 1929 doi	Table 11, p. 16, row 15 report
Hausmannite (Mn3O4)	Mn3O4	-201.266 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Siemonsen 1939	Table 11, p. 16, row 16 report
Hausmannite (Mn3O4)	Mn3O4	-201.206 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Ulich 1940 doi	Table 11, p. 16, row 17 report
Hausmannite (Mn3O4)	Mn3O4	-198.397 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Pankratz 1982	Table 11, p. 16, row 21 report
Hausmannite (Mn3O4)	Mn3O4	-198.364 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Shomate 1943 doi	Table 11, p. 16, row 18 report
Hausmannite (Mn3O4)	Mn3O4	-198.216 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Robie 1968	Table 11, p. 16, row 20 report
Hausmannite (Mn3O4)	Mn3O4	-198.2 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Kubaschewski 1993	Table 11, p. 16, row 23 report
Hausmannite (Mn3O4)	Mn3O4	-198.156 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Mah 1960	Table 11, p. 16, row 19 report
Hausmannite (Mn3O4)	Mn3O4	-198.014 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Knacke 1991	Table 11, p. 16, row 22 report
Hausmannite (Mn3O4)	Mn3O4	-197.534 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003	Table 11, p. 16, row 24 report
Hausmannite (Mn3O4)	Mn3O4	-196.78 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Ruff 1913 doi	Table 11, p. 16, row 14 report
Hausmannite (Mn3O4)	Mn3O4	-196.181 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Le 1896	Table 11, p. 16, row 13 report
Manganosite (Mn1−xO)		-411.14 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Guntz 1896	Table 11, p. 16, row 2 report
Manganosite (Mn1−xO)		-404.03 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Roth 1929 doi	Table 11, p. 16, row 3 report
Manganosite (Mn1−xO)		-389.79 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Siemonsen 1939	Table 11, p. 16, row 4 report
Manganosite (Mn1−xO)		-389.37 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Ulich 1940 doi	Table 11, p. 16, row 5 report
Manganosite (Mn1−xO)		-386.74 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003	Table 11, p. 16, row 12 report
Manganosite (Mn1−xO)		-385.48 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Pankratz 1982	Table 11, p. 16, row 9 report
Manganosite (Mn1−xO)		-385.39 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Robie 1968	Table 11, p. 16, row 8 report
Manganosite (Mn1−xO)		-385.35 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Southard 1942 doi	Table 11, p. 16, row 6 report
Manganosite (Mn1−xO)		-385.19 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Rossini 1952	Table 11, p. 16, row 7 report
Manganosite (Mn1−xO)		-384.9 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Kubaschewski 1993	Table 11, p. 16, row 11 report
Manganosite (Mn1−xO)		-382.5 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Knacke 1991	Table 11, p. 16, row 10 report
Manganosite (Mn1−xO)		-380.58 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Le 1896	Table 11, p. 16, row 1 report
Mn1-xO		-411.14 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Guntz 1896	Table 11, p. 16, row 47 report
Mn1-xO		-404.03 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Roth 1929 doi	Table 11, p. 16, row 48 report
Mn1-xO		-389.79 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Siemonsen 1939	Table 11, p. 16, row 49 report
Mn1-xO		-389.37 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Ulich 1940 doi	Table 11, p. 16, row 50 report
Mn1-xO		-386.74 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003	Table 11, p. 16, row 57 report
Mn1-xO		-385.48 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Pankratz 1982	Table 11, p. 16, row 54 report
Mn1-xO		-385.39 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Robie 1968	Table 11, p. 16, row 53 report
Mn1-xO		-385.35 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Southard 1942 doi	Table 11, p. 16, row 51 report
Mn1-xO		-385.19 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Rossini 1952	Table 11, p. 16, row 52 report
Mn1-xO		-384.9 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Kubaschewski 1993	Table 11, p. 16, row 56 report
Mn1-xO		-382.5 kJ/mol (basis unstated)	298.15	model			[1] Grundy 2003 cites Knacke 1991	Table 11, p. 16, row 55 report
Mn1-xO		-380.58 kJ/mol (basis unstated)	298.15	experimental			[1] Grundy 2003 cites Le 1896	Table 11, p. 16, row 46 report
Mn2O3	Mn2O3	-194.854 kJ/mol-atom	298.15	experimental	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Siemonsen 1939	Table 11, p. 16, row 70 report
Mn2O3	Mn2O3	-194.77 kJ/mol-atom	298.15	experimental	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Ulich 1940 doi	Table 11, p. 16, row 71 report
Mn2O3	Mn2O3	-192.518 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003	Table 11, p. 16, row 78 report
Mn2O3	Mn2O3	-191.922 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Pankratz 1982	Table 11, p. 16, row 75 report
Mn2O3	Mn2O3	-191.922 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Brewer 1953 doi	Table 11, p. 16, row 72 report
Mn2O3	Mn2O3	-191.8 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Knacke 1991	Table 11, p. 16, row 76 report
Mn2O3	Mn2O3	-191.62 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Kubaschewski 1993	Table 11, p. 16, row 77 report
Mn2O3	Mn2O3	-191.504 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Zordan 1968 doi	Table 11, p. 16, row 74 report
Mn2O3	Mn2O3	-191.254 kJ/mol-atom	298.15	model	-194.313 (mp-aaacotap)	-195.424 (oqmd-33708)	[1] Grundy 2003 cites Mah 1960	Table 11, p. 16, row 73 report
Mn3O4	Mn3O4	-206.35 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Roth 1929 doi	Table 11, p. 16, row 60 report
Mn3O4	Mn3O4	-201.266 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Siemonsen 1939	Table 11, p. 16, row 61 report
Mn3O4	Mn3O4	-201.206 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Ulich 1940 doi	Table 11, p. 16, row 62 report
Mn3O4	Mn3O4	-198.397 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Pankratz 1982	Table 11, p. 16, row 66 report
Mn3O4	Mn3O4	-198.364 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Shomate 1943 doi	Table 11, p. 16, row 63 report
Mn3O4	Mn3O4	-198.216 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Robie 1968	Table 11, p. 16, row 65 report
Mn3O4	Mn3O4	-198.2 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Kubaschewski 1993	Table 11, p. 16, row 68 report
Mn3O4	Mn3O4	-198.156 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Mah 1960	Table 11, p. 16, row 64 report
Mn3O4	Mn3O4	-198.014 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Knacke 1991	Table 11, p. 16, row 67 report
Mn3O4	Mn3O4	-197.534 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003	Table 11, p. 16, row 69 report
Mn3O4	Mn3O4	-196.78 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Ruff 1913 doi	Table 11, p. 16, row 59 report
Mn3O4	Mn3O4	-196.181 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[1] Grundy 2003 cites Le 1896	Table 11, p. 16, row 58 report
Mn3O4	Mn3O4	196.181 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Le 1896	Table 1, p. 5, row 1 report
Mn3O4	Mn3O4	196.78 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Ruff 1913 doi	Table 1, p. 5, row 2 report
Mn3O4	Mn3O4	197.534 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Grundy 2003	Table 1, p. 5, row 12 report
Mn3O4	Mn3O4	197.914 kJ/mol-atom	298.15	model	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010	Table 1, p. 5, row 13 report
Mn3O4	Mn3O4	198.014 kJ/mol-atom	298.15	unspecified	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Knacke 2010	Table 1, p. 5, row 10 report
Mn3O4	Mn3O4	198.156 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Mah 1960	Table 1, p. 5, row 7 report
Mn3O4	Mn3O4	198.2 kJ/mol-atom	298.15	unspecified	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Kubaschewski 1993	Table 1, p. 5, row 11 report
Mn3O4	Mn3O4	198.216 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Robie 1968	Table 1, p. 5, row 8 report
Mn3O4	Mn3O4	198.364 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Shomate 1943 doi	Table 1, p. 5, row 6 report
Mn3O4	Mn3O4	198.397 kJ/mol-atom	298.15	unspecified	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Pankratz 1982	Table 1, p. 5, row 9 report
Mn3O4	Mn3O4	201.206 kJ/mol-atom	298.15	unspecified	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Ulich 1940	Table 1, p. 5, row 5 report
Mn3O4	Mn3O4	201.266 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Siemonsen 1939	Table 1, p. 5, row 4 report
Mn3O4	Mn3O4	206.35 kJ/mol-atom	298.15	experimental	-197.834 (mp-aaaabbtn)	-200.053 (oqmd-5975)	[2] Kjellqvist 2010 cites Roth 1929 doi	Table 1, p. 5, row 3 report
MnO2	MnO2	-175.007 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Ulich 1940 doi	Table 11, p. 16, row 82 report
MnO2	MnO2	-175.007 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Siemonsen 1939	Table 11, p. 16, row 81 report
MnO2	MnO2	-174.73 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Le 1896	Table 11, p. 16, row 79 report
MnO2	MnO2	-174 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Knacke 1991	Table 11, p. 16, row 88 report
MnO2	MnO2	-173.947 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Shomate 1943 doi	Table 11, p. 16, row 83 report
MnO2	MnO2	-173.753 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Rossini 1952	Table 11, p. 16, row 84 report
MnO2	MnO2	-173.633 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Kubaschewski 1993	Table 11, p. 16, row 89 report
MnO2	MnO2	-173.613 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Mah 1960	Table 11, p. 16, row 86 report
MnO2	MnO2	-173.493 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003	Table 11, p. 16, row 90 report
MnO2	MnO2	-173.46 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Pankratz 1982	Table 11, p. 16, row 87 report
MnO2	MnO2	-173.333 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Brewer 1953 doi	Table 11, p. 16, row 85 report
MnO2	MnO2	-166.913 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Mixter 1910 doi	Table 11, p. 16, row 80 report
Pyrolusite (MnO2)	MnO2	-175.007 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Siemonsen 1939	Table 11, p. 16, row 36 report
Pyrolusite (MnO2)	MnO2	-175.007 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Ulich 1940 doi	Table 11, p. 16, row 37 report
Pyrolusite (MnO2)	MnO2	-174.73 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Le 1896	Table 11, p. 16, row 34 report
Pyrolusite (MnO2)	MnO2	-174 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Knacke 1991	Table 11, p. 16, row 43 report
Pyrolusite (MnO2)	MnO2	-173.947 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Shomate 1943 doi	Table 11, p. 16, row 38 report
Pyrolusite (MnO2)	MnO2	-173.753 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Rossini 1952	Table 11, p. 16, row 39 report
Pyrolusite (MnO2)	MnO2	-173.633 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Kubaschewski 1993	Table 11, p. 16, row 44 report
Pyrolusite (MnO2)	MnO2	-173.613 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Mah 1960	Table 11, p. 16, row 41 report
Pyrolusite (MnO2)	MnO2	-173.493 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003	Table 11, p. 16, row 45 report
Pyrolusite (MnO2)	MnO2	-173.46 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Pankratz 1982	Table 11, p. 16, row 42 report
Pyrolusite (MnO2)	MnO2	-173.333 kJ/mol-atom	298.15	model	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Brewer 1953 doi	Table 11, p. 16, row 40 report
Pyrolusite (MnO2)	MnO2	-166.913 kJ/mol-atom	298.15	experimental	-174.236 (mp-aaaabcrz)	-168.93 (oqmd-677684)	[1] Grundy 2003 cites Mixter 1910 doi	Table 11, p. 16, row 35 report

Other properties

Phase transition (13)

Phase transition, Mn–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Phase transition	300 K	300	a-Mn2O3 -> b-Mn2O3	experimental	[2] Kjellqvist 2010	p. 5 report	a-Bixbyite (a-Mn2O3) transforms to b-Mn2O3 (Strukturbericht D53) at around 300 K.
Phase transition	300 K	300	alpha-Mn2O3 + beta-Mn2O3	experimental	[1] Grundy 2003 cites Geller 1970 doi	p. 3 report	Orthorhombic ␣-bixbyite (␣-Mn2O3) transforms to cubic ␤-bixbyite[59] at around 300 K.
Phase transition	1408 K	1408	alpha-Mn3O4 + beta-Mn3O4	experimental	[1] Grundy 2003 cites Driessens 1967 doi	p. 3 report	The measured temperatures at which this transformation takes place are between 1408 K,[52] 1430 K,[54] 1433 K,[30] and 1473 K [51] with a larger number of other measurements[5,20,55-57] grouped between 1443 and 1450 K (Table 2).
Phase transition	1430 K	1430	alpha-Mn3O4 + beta-Mn3O4	experimental	[1] Grundy 2003 cites Metselaar 1981 doi	p. 3 report	The measured temperatures at which this transformation takes place are between 1408 K,[52] 1430 K,[54] 1433 K,[30] and 1473 K [51] with a larger number of other measurements[5,20,55-57] grouped between 1443 and 1450 K (Table 2).
Phase transition	1433 K	1433	alpha-Mn3O4 + beta-Mn3O4	experimental	[1] Grundy 2003 cites Van 1958	p. 3 report	The measured temperatures at which this transformation takes place are between 1408 K,[52] 1430 K,[54] 1433 K,[30] and 1473 K [51] with a larger number of other measurements[5,20,55-57] grouped between 1443 and 1450 K (Table 2).
Phase transition	1473 K	1473	alpha-Mn3O4 + beta-Mn3O4	experimental	[1] Grundy 2003 cites Schmier 1966 doi	p. 3 report	The measured temperatures at which this transformation takes place are between 1408 K,[52] 1430 K,[54] 1433 K,[30] and 1473 K [51] with a larger number of other measurements[5,20,55-57] grouped between 1443 and 1450 K (Table 2).
Phase transition	1519 K	1519	delta-Mn + liquid	experimental	[1] Grundy 2003 cites Fernandez 1990	p. 1 report	Manganese exists in four modifications: ␣-Mn (up to 980 K), ␤-Mn (up to 1360 K), ␥-Mn (up to 1411 K), and ␦-Mn (up to the melting temperature of 1519 K).
Phase transition	1835 K	1835	beta-Mn3O4 + liquid	experimental	[1] Grundy 2003 cites Van 1958	p. 1 report	The temperature of melting in air has been determined a number of times[20,27-30] (Table 2) with measured temperatures ranging from 1835 K[30] to 1863 K.[28]
Phase transition	1858 K	1858	other	experimental	[1] Grundy 2003 cites Andrew 1931	p. 1 report	The melting temperature of Mn1-xO has been determined a number of times (Table 2), either by measuring the melting point of pure MnO,[18,20] giving 2123 and 2115 K respectively, or by extrapolating the liquidus line of pseudobinary systems (MnO-FeO,[15,21-24] MnO-SiO2[25]) to pure MnO, giving temperatures ranging from 1858 K[21] to 2158 K.[24]
Phase transition	1863 K	1863	beta-Mn3O4 + liquid	experimental	[1] Grundy 2003 cites Von 1937	p. 1 report	The temperature of melting in air has been determined a number of times[20,27-30] (Table 2) with measured temperatures ranging from 1835 K[30] to 1863 K.[28]
Phase transition	2115 K	2115	other	experimental	[1] Grundy 2003 cites Tromel 1976	p. 1 report	The melting temperature of Mn1-xO has been determined a number of times (Table 2), either by measuring the melting point of pure MnO,[18,20] giving 2123 and 2115 K respectively, or by extrapolating the liquidus line of pseudobinary systems (MnO-FeO,[15,21-24] MnO-SiO2[25]) to pure MnO, giving temperatures ranging from 1858 K[21] to 2158 K.[24]
Phase transition	2123 K	2123	other	experimental	[1] Grundy 2003 cites Schenck 1964 doi	p. 1 report	The melting temperature of Mn1-xO has been determined a number of times (Table 2), either by measuring the melting point of pure MnO,[18,20] giving 2123 and 2115 K respectively, or by extrapolating the liquidus line of pseudobinary systems (MnO-FeO,[15,21-24] MnO-SiO2[25]) to pure MnO, giving temperatures ranging from 1858 K[21] to 2158 K.[24]
Phase transition	2158 K	2158	other	experimental	[1] Grundy 2003 cites Schurmann 1984 doi	p. 1 report	The melting temperature of Mn1-xO has been determined a number of times (Table 2), either by measuring the melting point of pure MnO,[18,20] giving 2123 and 2115 K respectively, or by extrapolating the liquidus line of pseudobinary systems (MnO-FeO,[15,21-24] MnO-SiO2[25]) to pure MnO, giving temperatures ranging from 1858 K[21] to 2158 K.[24]

Mixing / partial (1)

Mixing / partial, Mn–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location	Quote
Entropy of mixing printed: ΔSmelt	10.4 J/mol (basis unstated)/K		MnO alloy: O 0.5	model	[1] Grundy 2003	Table 3, p. 5, row 4 report

Heat capacity / entropy / enthalpy (69)

Heat capacity / entropy / enthalpy, Mn–O system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Entropy printed: °S298	22.1 J/mol-atom/K	298.15	Bixbyite (Mn2O3) alloy: O 0.6	model	[1] Grundy 2003 cites Kubaschewski 1993	Table 10, p. 15, row 20 report
Entropy printed: °S298	22.42 J/mol-atom/K	298.15	Bixbyite (Mn2O3) alloy: O 0.6	model	[1] Grundy 2003	Table 10, p. 15, row 22 report
Entropy printed: °S298	22.74 J/mol-atom/K	298.15	Bixbyite (Mn2O3) alloy: O 0.6	model	[1] Grundy 2003 cites Robie 1985 doi	Table 10, p. 15, row 19 report
Entropy printed: °S298	22.106 J/mol-atom/K	298.15	Bixbyite (Mn2O3) alloy: O 0.6	model	[1] Grundy 2003 cites King 1954 doi	Table 10, p. 15, row 18 report
Entropy printed: °S298	22.106 J/mol-atom/K	298.15	Bixbyite (Mn2O3) alloy: O 0.6	model	[1] Grundy 2003 cites Pankratz 1982	Table 10, p. 15, row 17 report
Entropy printed: °S298	22.106 J/mol-atom/K	298.15	Bixbyite (Mn2O3) alloy: O 0.6	model	[1] Grundy 2003 cites Zordan 1968 doi	Table 10, p. 15, row 21 report
Entropy printed: °S298	22.25 J/mol-atom/K	298.15	Hausmannite (Mn3O4) alloy: O 0.571429	model	[1] Grundy 2003 cites Pankratz 1982	Table 10, p. 15, row 9 report
Entropy printed: °S298	24.0486 J/mol-atom/K	298.15	Hausmannite (Mn3O4) alloy: O 0.571429	model	[1] Grundy 2003	Table 10, p. 15, row 16 report
Entropy printed: °S298	21.37 J/mol-atom/K	298.15	Hausmannite (Mn3O4) alloy: O 0.571429	model	[1] Grundy 2003 cites Millar 1928	Table 10, p. 15, row 11 report
Entropy printed: °S298	22.1143 J/mol-atom/K	298.15	Hausmannite (Mn3O4) alloy: O 0.571429	model	[1] Grundy 2003 cites Kubaschewski 1993	Table 10, p. 15, row 14 report
Entropy printed: °S298	23.4429 J/mol-atom/K	298.15	Hausmannite (Mn3O4) alloy: O 0.571429	model	[1] Grundy 2003 cites Robie 1985 doi	Table 10, p. 15, row 12 report
Entropy printed: °S298	22.01 J/mol-atom/K	298.15	Hausmannite (Mn3O4) alloy: O 0.571429	model	[1] Grundy 2003 cites Zordan 1968 doi	Table 10, p. 15, row 15 report
Entropy printed: °S298	23.8 J/mol-atom/K	298.15	Hausmannite (Mn3O4) alloy: O 0.571429	model	[1] Grundy 2003 cites ONeill 1993 doi	Table 10, p. 15, row 10 report
Entropy printed: °S298	23.8714 J/mol-atom/K	298.15	Hausmannite (Mn3O4) alloy: O 0.571429	model	[1] Grundy 2003 cites Chhor 1986 doi	Table 10, p. 15, row 13 report
Entropy printed: °S298	53.17 J/mol (basis unstated)/K	298.15	Manganosite (Mn1−xO)	model	[1] Grundy 2003 cites Kelley 1943 doi	Table 10, p. 15, row 4 report
Entropy printed: °S298	59.8 J/mol (basis unstated)/K	298.15	Manganosite (Mn1−xO)	model	[1] Grundy 2003 cites Kubaschewski 1993	Table 10, p. 15, row 5 report
Entropy printed: °S298	59.75 J/mol (basis unstated)/K	298.15	Manganosite (Mn1−xO)	model	[1] Grundy 2003 cites Todd 1951 doi	Table 10, p. 15, row 7 report
Entropy printed: °S298	59.02 J/mol (basis unstated)/K	298.15	Manganosite (Mn1−xO)	model	[1] Grundy 2003	Table 10, p. 15, row 8 report
Entropy printed: °S298	59.02 J/mol (basis unstated)/K	298.15	Manganosite (Mn1−xO)	model	[1] Grundy 2003 cites Shapiro 1999 doi	Table 10, p. 15, row 1 report
Entropy printed: °S298	62.47 J/mol (basis unstated)/K	298.15	Manganosite (Mn1−xO)	model	[1] Grundy 2003 cites Millar 1928	Table 10, p. 15, row 3 report
Entropy printed: °S298	59.75 J/mol (basis unstated)/K	298.15	Manganosite (Mn1−xO)	model	[1] Grundy 2003 cites Pankratz 1982	Table 10, p. 15, row 2 report
Entropy printed: °S298	59.87 J/mol (basis unstated)/K	298.15	Manganosite (Mn1−xO)	model	[1] Grundy 2003 cites Zordan 1968 doi	Table 10, p. 15, row 6 report
Entropy printed: °S298	59.75 J/mol (basis unstated)/K	298.15	Mn1-xO	model	[1] Grundy 2003 cites Pankratz 1982	Table 10, p. 15, row 32 report
Entropy printed: °S298	59.87 J/mol (basis unstated)/K	298.15	Mn1-xO	model	[1] Grundy 2003 cites Zordan 1968 doi	Table 10, p. 15, row 36 report
Entropy printed: °S298	53.17 J/mol (basis unstated)/K	298.15	Mn1-xO	model	[1] Grundy 2003 cites Kelley 1943 doi	Table 10, p. 15, row 34 report
Entropy printed: °S298	59.75 J/mol (basis unstated)/K	298.15	Mn1-xO	model	[1] Grundy 2003 cites Todd 1951 doi	Table 10, p. 15, row 37 report
Entropy printed: °S298	62.47 J/mol (basis unstated)/K	298.15	Mn1-xO	model	[1] Grundy 2003 cites Millar 1928	Table 10, p. 15, row 33 report
Entropy printed: °S298	59.02 J/mol (basis unstated)/K	298.15	Mn1-xO	model	[1] Grundy 2003 cites Shapiro 1999 doi	Table 10, p. 15, row 31 report
Entropy printed: °S298	59.8 J/mol (basis unstated)/K	298.15	Mn1-xO	model	[1] Grundy 2003 cites Kubaschewski 1993	Table 10, p. 15, row 35 report
Entropy printed: °S298	59.02 J/mol (basis unstated)/K	298.15	Mn1-xO	model	[1] Grundy 2003	Table 10, p. 15, row 38 report
Entropy printed: °S298	22.106 J/mol-atom/K	298.15	Mn2O3 alloy: O 0.6	model	[1] Grundy 2003 cites Zordan 1968 doi	Table 10, p. 15, row 51 report
Entropy printed: °S298	22.106 J/mol-atom/K	298.15	Mn2O3 alloy: O 0.6	model	[1] Grundy 2003 cites Pankratz 1982	Table 10, p. 15, row 47 report
Entropy printed: °S298	22.106 J/mol-atom/K	298.15	Mn2O3 alloy: O 0.6	model	[1] Grundy 2003 cites King 1954 doi	Table 10, p. 15, row 48 report
Entropy printed: °S298	22.74 J/mol-atom/K	298.15	Mn2O3 alloy: O 0.6	model	[1] Grundy 2003 cites Robie 1985 doi	Table 10, p. 15, row 49 report
Entropy printed: °S298	22.1 J/mol-atom/K	298.15	Mn2O3 alloy: O 0.6	model	[1] Grundy 2003 cites Kubaschewski 1993	Table 10, p. 15, row 50 report
Entropy printed: °S298	22.42 J/mol-atom/K	298.15	Mn2O3 alloy: O 0.6	model	[1] Grundy 2003	Table 10, p. 15, row 52 report
Entropy printed: °S298	22.1143 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[1] Grundy 2003 cites Kubaschewski 1993	Table 10, p. 15, row 44 report
Entropy printed: °S298	21.37 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	experimental	[2] Kjellqvist 2010 cites Millar 1928	Table 1, p. 5, row 16 report
Entropy printed: °S298	23.6729 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[2] Kjellqvist 2010	Table 1, p. 5, row 22 report
Entropy printed: °S298	23.8714 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	experimental	[2] Kjellqvist 2010 cites Chhor 1986 doi	Table 1, p. 5, row 18 report
Entropy printed: °S298	22.25 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[1] Grundy 2003 cites Pankratz 1982	Table 10, p. 15, row 39 report
Entropy printed: °S298	23.4429 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	experimental	[2] Kjellqvist 2010 cites Robie 1985 doi	Table 1, p. 5, row 17 report
Entropy printed: °S298	22.01 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[1] Grundy 2003 cites Zordan 1968 doi	Table 10, p. 15, row 45 report
Entropy printed: °S298	23.8 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[1] Grundy 2003 cites ONeill 1993 doi	Table 10, p. 15, row 40 report
Entropy printed: °S298	23.8714 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[1] Grundy 2003 cites Chhor 1986 doi	Table 10, p. 15, row 43 report
Entropy printed: °S298	23.4429 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[1] Grundy 2003 cites Robie 1985 doi	Table 10, p. 15, row 42 report
Entropy printed: °S298	22.01 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	experimental	[2] Kjellqvist 2010 cites Zordan 1968 doi	Table 1, p. 5, row 20 report
Entropy printed: °S298	21.37 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[1] Grundy 2003 cites Millar 1928	Table 10, p. 15, row 41 report
Entropy printed: °S298	22.25 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	unspecified	[2] Kjellqvist 2010 cites Pankratz 1982	Table 1, p. 5, row 14 report
Entropy printed: °S298	24.0486 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[2] Kjellqvist 2010 cites Grundy 2003	Table 1, p. 5, row 21 report
Entropy printed: °S298	22.1143 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	unspecified	[2] Kjellqvist 2010 cites Kubaschewski 1993	Table 1, p. 5, row 19 report
Entropy printed: °S298	23.8 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[2] Kjellqvist 2010 cites ONeill 1993 doi	Table 1, p. 5, row 15 report
Entropy printed: °S298	24.0486 J/mol-atom/K	298.15	Mn3O4 alloy: O 0.571429	model	[1] Grundy 2003	Table 10, p. 15, row 46 report
Entropy printed: °S298	17.5833 J/mol-atom/K	298.15	MnO2 alloy: O 0.666667	model	[1] Grundy 2003 cites Robie 1985 doi	Table 10, p. 15, row 56 report
Entropy printed: °S298	17.6967 J/mol-atom/K	298.15	MnO2 alloy: O 0.666667	model	[1] Grundy 2003 cites Zordan 1968 doi	Table 10, p. 15, row 59 report
Entropy printed: °S298	18.0867 J/mol-atom/K	298.15	MnO2 alloy: O 0.666667	model	[1] Grundy 2003 cites Moore 1943 doi	Table 10, p. 15, row 54 report
Entropy printed: °S298	17.9833 J/mol-atom/K	298.15	MnO2 alloy: O 0.666667	model	[1] Grundy 2003	Table 10, p. 15, row 60 report
Entropy printed: °S298	19.44 J/mol-atom/K	298.15	MnO2 alloy: O 0.666667	model	[1] Grundy 2003 cites Millar 1928	Table 10, p. 15, row 55 report
Entropy printed: °S298	17.7233 J/mol-atom/K	298.15	MnO2 alloy: O 0.666667	model	[1] Grundy 2003 cites Kelley 1943 doi	Table 10, p. 15, row 58 report
Entropy printed: °S298	17.6967 J/mol-atom/K	298.15	MnO2 alloy: O 0.666667	model	[1] Grundy 2003 cites Pankratz 1982	Table 10, p. 15, row 53 report
Entropy printed: °S298	17.7 J/mol-atom/K	298.15	MnO2 alloy: O 0.666667	model	[1] Grundy 2003 cites Kubaschewski 1993	Table 10, p. 15, row 57 report
Entropy printed: °S298	19.44 J/mol-atom/K	298.15	Pyrolusite (MnO2) alloy: O 0.666667	model	[1] Grundy 2003 cites Millar 1928	Table 10, p. 15, row 25 report
Entropy printed: °S298	17.7 J/mol-atom/K	298.15	Pyrolusite (MnO2) alloy: O 0.666667	model	[1] Grundy 2003 cites Kubaschewski 1993	Table 10, p. 15, row 27 report
Entropy printed: °S298	17.6967 J/mol-atom/K	298.15	Pyrolusite (MnO2) alloy: O 0.666667	model	[1] Grundy 2003 cites Zordan 1968 doi	Table 10, p. 15, row 29 report
Entropy printed: °S298	17.7233 J/mol-atom/K	298.15	Pyrolusite (MnO2) alloy: O 0.666667	model	[1] Grundy 2003 cites Kelley 1943 doi	Table 10, p. 15, row 28 report
Entropy printed: °S298	17.5833 J/mol-atom/K	298.15	Pyrolusite (MnO2) alloy: O 0.666667	model	[1] Grundy 2003 cites Robie 1985 doi	Table 10, p. 15, row 26 report
Entropy printed: °S298	18.0867 J/mol-atom/K	298.15	Pyrolusite (MnO2) alloy: O 0.666667	model	[1] Grundy 2003 cites Moore 1943 doi	Table 10, p. 15, row 24 report
Entropy printed: °S298	17.6967 J/mol-atom/K	298.15	Pyrolusite (MnO2) alloy: O 0.666667	model	[1] Grundy 2003 cites Pankratz 1982	Table 10, p. 15, row 23 report
Entropy printed: °S298	17.9833 J/mol-atom/K	298.15	Pyrolusite (MnO2) alloy: O 0.666667	model	[1] Grundy 2003	Table 10, p. 15, row 30 report

Model expression (113)

Model expression, Mn–O system
Property	Value	Phases / composition	Class	Source	Location
gibbs energy expression term printed: Δ°G(T) coefficient of T	92.63 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Charette 1968 doi	Table 8, p. 11, row 28 report
gibbs energy expression term printed: Δ°G(T) constant A	-114139 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Charette 1968 doi	Table 8, p. 11, row 28 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	96.73 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Schmahl 1963 doi	Table 8, p. 11, row 27 report
gibbs energy expression term printed: Δ°G(T) constant A	-1119770 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Schmahl 1963 doi	Table 8, p. 11, row 27 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	120.8 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 30 report
gibbs energy expression term printed: Δ°G(T) constant A	-155690 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 30 report
gibbs energy expression term printed: Δ°G(T) constant A	-104252 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Vlasov 1958	Table 8, p. 11, row 19 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	80.73 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Vlasov 1958	Table 8, p. 11, row 19 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	69.25 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Klingsberg 1960	Table 8, p. 11, row 26 report
gibbs energy expression term printed: Δ°G(T) constant A	-64756 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Klingsberg 1960	Table 8, p. 11, row 26 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	84.74 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Ingraham 1966 doi	Table 8, p. 11, row 23 report
gibbs energy expression term printed: Δ°G(T) constant A	-105600 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Ingraham 1966 doi	Table 8, p. 11, row 23 report
gibbs energy expression term printed: Δ°G(T) constant A	-90311 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Huebner 1970	Table 8, p. 11, row 17 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	72.11 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Huebner 1970	Table 8, p. 11, row 17 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	52.53 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Meyer 1908 doi	Table 8, p. 11, row 20 report
gibbs energy expression term printed: Δ°G(T) constant A	-71513 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Meyer 1908 doi	Table 8, p. 11, row 20 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	68.97 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Otto 2003	Table 8, p. 11, row 25 report
gibbs energy expression term printed: Δ°G(T) constant A	-86401 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Otto 2003	Table 8, p. 11, row 25 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	289 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 29 report
gibbs energy expression term printed: Δ°G(T) constant A	-140000 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 29 report
gibbs energy expression term printed: Δ°G(T) coefficient of T ln(T)	-24.8 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 29 report
gibbs energy expression term printed: Δ°G(T) constant A	-87423 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Hahn 1960 doi	Table 8, p. 11, row 18 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	70.54 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Hahn 1960 doi	Table 8, p. 11, row 18 report
gibbs energy expression term printed: Δ°G(T) constant A	-97719 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Shenouda 1967 doi	Table 8, p. 11, row 22 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	78.88 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Shenouda 1967 doi	Table 8, p. 11, row 22 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	71.54 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Kim 1966	Table 8, p. 11, row 21 report
gibbs energy expression term printed: Δ°G(T) constant A	-95305 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Kim 1966	Table 8, p. 11, row 21 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	84.47 J/mol/K	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Hochgeschwender 1967 doi	Table 8, p. 11, row 24 report
gibbs energy expression term printed: Δ°G(T) constant A	-105768 J/mol	Mn2O3 + α-Mn3O4 alloy: O 0.6	experimental	[1] Grundy 2003 cites Hochgeschwender 1967 doi	Table 8, p. 11, row 24 report
gibbs energy expression term printed: Δ°G(T) constant	-124740 J/mol	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Meyer 1908 doi	Table 9, p. 11, row 15 report
gibbs energy expression term printed: Δ°G(T) T coefficient	148.91 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Meyer 1908 doi	Table 9, p. 11, row 15 report
gibbs energy expression term printed: Δ°G(T) T coefficient	106.63 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Otto 1965 doi	Table 9, p. 11, row 11 report
gibbs energy expression term printed: Δ°G(T) constant	-77583 J/mol	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Otto 1965 doi	Table 9, p. 11, row 11 report
gibbs energy expression term printed: Δ°G(T) T coefficient	112.51 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Hochgeschwender 1967 doi	Table 9, p. 11, row 14 report
gibbs energy expression term printed: Δ°G(T) constant	-91933 J/mol	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Hochgeschwender 1967 doi	Table 9, p. 11, row 14 report
gibbs energy expression term printed: Δ°G(T) constant	-66236 J/mol	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Vlasov 1958	Table 9, p. 11, row 10 report
gibbs energy expression term printed: Δ°G(T) T coefficient	82.61 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Vlasov 1958	Table 9, p. 11, row 10 report
gibbs energy expression term printed: Δ°G(T) constant	-224.87 J/mol	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Klingsberg 1960	Table 9, p. 11, row 16 report
gibbs energy expression term printed: Δ°G(T) T coefficient	46.76 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Klingsberg 1960	Table 9, p. 11, row 16 report
gibbs energy expression term printed: Δ°G(T) constant	-76338 J/mol	Mn2O3 + α-MnO2 alloy: O 0.6	model	[1] Grundy 2003	Table 9, p. 11, row 18 report
gibbs energy expression term printed: Δ°G(T) T coefficient	103.63 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	model	[1] Grundy 2003	Table 9, p. 11, row 18 report
gibbs energy expression term printed: Δ°G(T) constant	-49862 J/mol	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Askenasy 1910	Table 9, p. 11, row 13 report
gibbs energy expression term printed: Δ°G(T) T coefficient	62.24 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Askenasy 1910	Table 9, p. 11, row 13 report
gibbs energy expression term printed: Δ°G(T) constant	-45055 J/mol	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Kim 1966	Table 9, p. 11, row 12 report
gibbs energy expression term printed: Δ°G(T) T coefficient	49.56 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	experimental	[1] Grundy 2003 cites Kim 1966	Table 9, p. 11, row 12 report
gibbs energy expression term printed: Δ°G(T) T ln(T) coefficient	2.11 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	model	[1] Grundy 2003	Table 9, p. 11, row 17 report
gibbs energy expression term printed: Δ°G(T) T coefficient	94.4 J/mol/K	Mn2O3 + α-MnO2 alloy: O 0.6	model	[1] Grundy 2003	Table 9, p. 11, row 17 report
gibbs energy expression term printed: Δ°G(T) constant	-80000 J/mol	Mn2O3 + α-MnO2 alloy: O 0.6	model	[1] Grundy 2003	Table 9, p. 11, row 17 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	306 J/mol/K	Mn2O3 + β-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 31 report
gibbs energy expression term printed: Δ°G(T) constant A	-174000 J/mol	Mn2O3 + β-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 31 report
gibbs energy expression term printed: Δ°G(T) coefficient of T ln(T)	-23.8 J/mol/K	Mn2O3 + β-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 31 report
gibbs energy expression term printed: Δ°G(T) coefficient of T	77.823 J/mol/K	Mn2O3 + β-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 32 report
gibbs energy expression term printed: Δ°G(T) constant A	-94568 J/mol	Mn2O3 + β-Mn3O4 alloy: O 0.6	model	[1] Grundy 2003	Table 8, p. 11, row 32 report
gibbs energy expression term printed: Δ°G(T) [T]	110.05 J/(mol K)	MnO + α-, β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Fender 1970	Table 7, p. 11, row 13 report
gibbs energy expression term printed: Δ°G(T) [a]	-221609 J/mol	MnO + α-, β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Fender 1970	Table 7, p. 11, row 13 report
gibbs energy expression term printed: Δ°G(T) [a]	-240533 J/mol	MnO + α-, β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Tromel 1976	Table 7, p. 11, row 10 report
gibbs energy expression term printed: Δ°G(T) [T]	123.59 J/(mol K)	MnO + α-, β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Tromel 1976	Table 7, p. 11, row 10 report
gibbs energy expression term printed: Δ°G(T) [a]	-245694 J/mol	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Huebner 1970	Table 7, p. 11, row 4 report
gibbs energy expression term printed: Δ°G(T) [T]	129.68 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Huebner 1970	Table 7, p. 11, row 4 report
gibbs energy expression term printed: Δ°G(T) [T]	-151.43 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Kim 1966	Table 7, p. 11, row 1 report
gibbs energy expression term printed: Δ°G(T) [a]	-241735 J/mol	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Kim 1966	Table 7, p. 11, row 1 report
gibbs energy expression term printed: Δ°G(T) [T]	111.4 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites ONeill 1993 doi	Table 7, p. 11, row 8 report
gibbs energy expression term printed: Δ°G(T) [a]	-222827 J/mol	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites ONeill 1993 doi	Table 7, p. 11, row 8 report
gibbs energy expression term printed: Δ°G(T) [T]	109.94 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Schwerdtfeger 1967	Table 7, p. 11, row 6 report
gibbs energy expression term printed: Δ°G(T) [a]	-222259 J/mol	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Schwerdtfeger 1967	Table 7, p. 11, row 6 report
gibbs energy expression term printed: Δ°G(T) [a]	-245604 J/mol	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Chou 1978	Table 7, p. 11, row 9 report
gibbs energy expression term printed: Δ°G(T) [T]	130.48 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Chou 1978	Table 7, p. 11, row 9 report
gibbs energy expression term printed: Δ°G(T) [a]	-224450 J/mol	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Charette 1968 doi	Table 7, p. 11, row 12 report
gibbs energy expression term printed: Δ°G(T) [T (printed without T)]	112.35 J/mol	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Charette 1968 doi	Table 7, p. 11, row 12 report
gibbs energy expression term printed: Δ°G(T) [a]	-223681 J/mol	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Charette 1968 doi	Table 7, p. 11, row 11 report
gibbs energy expression term printed: Δ°G(T) [T]	111.9 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Charette 1968 doi	Table 7, p. 11, row 11 report
gibbs energy expression term printed: Δ°G(T) [T]	107.36 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Schwerdtfeger 1967	Table 7, p. 11, row 7 report
gibbs energy expression term printed: Δ°G(T) [a]	-219419 J/mol	MnO + α-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Schwerdtfeger 1967	Table 7, p. 11, row 7 report
gibbs energy expression term printed: Δ°G(T) [T ln(T)]	7.82 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 14 report
gibbs energy expression term printed: Δ°G(T) [a]	-214000 J/mol	MnO + α-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 14 report
gibbs energy expression term printed: Δ°G(T) [T]	48.8 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 14 report
gibbs energy expression term printed: Δ°G(T) [a]	-222470 J/mol	MnO + α-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 15 report
gibbs energy expression term printed: Δ°G(T) [T]	111.1 J/(mol K)	MnO + α-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 15 report
gibbs energy expression term printed: Δ°G(T) [T]	117.2 J/(mol K)	MnO + β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Schmahl 1969 doi	Table 7, p. 11, row 2 report
gibbs energy expression term printed: Δ°G(T) [a]	-229774 J/mol	MnO + β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Schmahl 1969 doi	Table 7, p. 11, row 2 report
gibbs energy expression term printed: Δ°G(T) [T]	137.82 J/(mol K)	MnO + β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Hahn 1960 doi	Table 7, p. 11, row 3 report
gibbs energy expression term printed: Δ°G(T) [a]	-266649 J/mol	MnO + β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Hahn 1960 doi	Table 7, p. 11, row 3 report
gibbs energy expression term printed: Δ°G(T) [T]	117.77 J/(mol K)	MnO + β-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 17 report
gibbs energy expression term printed: Δ°G(T) [a]	-231960 J/mol	MnO + β-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 17 report
gibbs energy expression term printed: Δ°G(T) [T]	73.66 J/(mol K)	MnO + β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Hed 1967 doi	Table 7, p. 11, row 5 report
gibbs energy expression term printed: Δ°G(T) [a]	-159463 J/mol	MnO + β-Mn3O4 alloy: O 0.5	experimental	[1] Grundy 2003 cites Hed 1967 doi	Table 7, p. 11, row 5 report
gibbs energy expression term printed: Δ°G(T) [T ln(T)]	110.2 J/(mol K)	MnO + β-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 16 report
gibbs energy expression term printed: Δ°G(T) [a]	-54008 J/mol	MnO + β-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 16 report
gibbs energy expression term printed: Δ°G(T) [T]	-807.1 J/(mol K)	MnO + β-Mn3O4 alloy: O 0.5	model	[1] Grundy 2003	Table 7, p. 11, row 16 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	72.33 J/mol/K	α-Mn + MnO alloy: O 0	unspecified	[1] Grundy 2003	Table 6, p. 10, row 14 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-385510 J/mol	α-Mn + MnO alloy: O 0	unspecified	[1] Grundy 2003	Table 6, p. 10, row 14 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-386000 J/mol	α-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 13 report
gibbs energy expression term printed: Δ°G(T) (coefficient of Tln(T))	-0.559 J/mol/K	α-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 13 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	77.3 J/mol/K	α-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 13 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-391657 J/mol	β-, γ-, δ-Mn + MnO alloy: O 0	experimental	[1] Grundy 2003 cites Alcock 1967 doi	Table 6, p. 10, row 12 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	78.06 J/mol/K	β-, γ-, δ-Mn + MnO alloy: O 0	experimental	[1] Grundy 2003 cites Alcock 1967 doi	Table 6, p. 10, row 12 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	76.26 J/mol/K	β-, γ-, δ-Mn + MnO alloy: O 0	experimental	[1] Grundy 2003 cites Alcock 1967 doi	Table 6, p. 10, row 11 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-391538 J/mol	β-, γ-, δ-Mn + MnO alloy: O 0	experimental	[1] Grundy 2003 cites Alcock 1967 doi	Table 6, p. 10, row 11 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	75.345 J/mol/K	β-Mn + MnO alloy: O 0	unspecified	[1] Grundy 2003	Table 6, p. 10, row 16 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-387830 J/mol	β-Mn + MnO alloy: O 0	unspecified	[1] Grundy 2003	Table 6, p. 10, row 16 report
gibbs energy expression term printed: Δ°G(T) (coefficient of Tln(T))	1.74 J/mol/K	β-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 15 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	61.3 J/mol/K	β-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 15 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-386000 J/mol	β-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 15 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-386000 J/mol	γ-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 17 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	50.7 J/mol/K	γ-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 17 report
gibbs energy expression term printed: Δ°G(T) (coefficient of Tln(T))	3.21 J/mol/K	γ-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 17 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-390140 J/mol	γ-Mn + MnO alloy: O 0	unspecified	[1] Grundy 2003	Table 6, p. 10, row 18 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	77.048 J/mol/K	γ-Mn + MnO alloy: O 0	unspecified	[1] Grundy 2003	Table 6, p. 10, row 18 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	79.023 J/mol/K	δ-Mn + MnO alloy: O 0	unspecified	[1] Grundy 2003	Table 6, p. 10, row 20 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-392940 J/mol	δ-Mn + MnO alloy: O 0	unspecified	[1] Grundy 2003	Table 6, p. 10, row 20 report
gibbs energy expression term printed: Δ°G(T) (constant term)	-386000 J/mol	δ-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 19 report
gibbs energy expression term printed: Δ°G(T) (coefficient of Tln(T))	4.55 J/mol/K	δ-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 19 report
gibbs energy expression term printed: Δ°G(T) (coefficient of T)	40.9 J/mol/K	δ-Mn + MnO alloy: O 0	model	[1] Grundy 2003	Table 6, p. 10, row 19 report

Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

A. Nicholas Grundy, Bengt Hallstedt, Ludwig J. Gauckler, Assessment of the Mn-O system, JPE 24, 21-39 (2003). doi:10.1007/s11669-003-0004-6
Lina Kjellqvist, Malin Selleby, Thermodynamic Assessment of the Fe-Mn-O System, J. Phase Equilib. Diffus. 31, 113-134 (2010). doi:10.1007/s11669-009-9643-6

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735569
R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735859
R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). doi:10.5281/zenodo.23735891
R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23736065

Also cite the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0). Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

@misc{orchid_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}