P–Zn system

85 accepted literature values from 3 paper(s) (experimental 37, model 35, unspecified 13); 0 calculated phase diagram(s). 7 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: JSON · CSV · interactive explorer · phases (13) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence classValues
experimental37
model35
unspecified13
Accepted values by property group
Property groupValues
invariant reaction18
phase transition25
formation34
crystal structure8

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull ZnP-09Tu · CALPHAD hull ZnP-16Liu

Invariant reactions (literature)

Invariant reactions reported in the literature for the P–Zn system (18)
T (K)Reaction / phasesCompositions (mole fraction)ClassSourceLocationQuote
1269.15eutectic: L -> ZnP2 + Zn3P2L: P 0.0059; ZnP2: P 0.666667; Zn3P2: P 0.4unspecified[1] Liu 2016
cites Tu 2009 doi
Table 5, p. 6, row 9
report
1267.15eutectic: L -> ZnP2 + Zn3P2L: P 0.00594; ZnP2: P 0.666667; Zn3P2: P 0.4unspecified[1] Liu 2016Table 5, p. 6, row 8
report
1258.15eutectic: L -> βZn3P2 + αZnP2L: P 0.57; βZn3P2: P 0.4; αZnP2: P 0.666model[2] Ghasemi 2019Table 4, p. 6, row 22
report
1256.15eutectic: L -> βZn3P2 + αZnP2L: P 0.56; βZn3P2: P 0.4; αZnP2: P 0.666model[2] Ghasemi 2019Table 4, p. 6, row 21
report
1255.15eutectic: L -> βZn3P2 + αZnP2L: P 0.56; βZn3P2: P 0.4; αZnP2: P 0.666model[2] Ghasemi 2019Table 4, p. 6, row 23
report
1253.15eutectic: L -> βZn3P2 + αZnP2L: P 0.55; βZn3P2: P 0.4; αZnP2: P 0.666experimental[2] Ghasemi 2019
cites Berak 1969
Table 4, p. 6, row 19
report
1253.15eutectic: L -> ZnP2 + Zn3P2L: P 0.0055; ZnP2: P 0.666667; Zn3P2: P 0.4experimental[1] Liu 2016
cites Dutkiewlcz 1991 doi
Table 5, p. 6, row 10
report
1223.15eutectic: L -> βZn3P2 + αZnP2βZn3P2: P 0.4; αZnP2: P 0.666667experimental[2] Ghasemi 2019
cites Schneider 1973
Table 4, p. 6, row 20
report
692.3eutectic: L -> (Zn) + αZn3P2L: P 7.000e-4; (Zn): P 0; αZn3P2: P 0.4model[2] Ghasemi 2019Table 4, p. 6, row 5
report
692.15eutectic: L -> (Zn) + αZn3P2L: P 0.0066; (Zn): P 0; αZn3P2: P 0.4experimental[2] Ghasemi 2019
cites Berak 1969
Table 4, p. 6, row 2
report
690.9eutectic: L -> (Zn) + αZn3P2L: P 0.0034; (Zn): P 0; αZn3P2: P 0.4model[2] Ghasemi 2019Table 4, p. 6, row 4
report
690.8eutectic: L -> (Zn) + αZn3P2L: P 0.0036; (Zn): P 0; αZn3P2: P 0.4model[2] Ghasemi 2019Table 4, p. 6, row 6
report
689.15eutectic: L -> (Zn) + Zn3P2L: P 6.400e-4; (Zn): P 0; Zn3P2: P 0.4unspecified[1] Liu 2016
cites Tu 2009 doi
Table 5, p. 6, row 3
report
689.15eutectic: L -> (Zn) + Zn3P2L: P 6.600e-4; (Zn): P 0; Zn3P2: P 0.4experimental[1] Liu 2016
cites Dutkiewlcz 1991 doi
Table 5, p. 6, row 4
report
689.15eutectic: L -> (Zn) + αZn3P2L: P 0.0066; (Zn): P 0; αZn3P2: P 0.4experimental[2] Ghasemi 2019
cites Schneider 1973
Table 4, p. 6, row 1
report
686.15eutectic: L -> (Zn) + Zn3P2L: P 0.025; (Zn): P 0; Zn3P2: P 0.4experimental[1] Liu 2016
cites Ugay 1968
Table 5, p. 6, row 2
report
685.35eutectic: L -> (Zn) + Zn3P2L: P 0.00907; (Zn): P 0; Zn3P2: P 0.4unspecified[1] Liu 2016Table 5, p. 6, row 1
report
674.15eutectic: L -> (Zn) + αZn3P2L: P 0.025; (Zn): P 0; αZn3P2: P 0.4experimental[2] Ghasemi 2019
cites Ugai 1968
Table 4, p. 6, row 3
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, P–Zn system (20)
PhaseCompoundValueT (K)ClassMP DFT (kJ/mol-atom)OQMD DFT (kJ/mol-atom)SourceLocationQuote
Zn3P2-181.78 kJ/mol (basis unstated)298.15model[2] Ghasemi 2019
cites Tu 2009 doi
Table 2, p. 3, row 2
report
Zn3P2-151.839 kJ/mol (basis unstated)298.15model[2] Ghasemi 2019
cites Liu 2016 doi
Table 2, p. 3, row 1
report
Zn3P2Zn3P2-46.06 kJ/mol-atom ± 6300298.15experimental-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[1] Liu 2016
cites Karvelis 1959
Table 4, p. 6, row 4
report
Zn3P2Zn3P2-46.06 kJ/mol-atom ± 1.26298.15experimental-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[3] Tu 2009
cites Karvelis 1959
Table 3, p. 4, row 8
report
Zn3P2Zn3P2-44.66 kJ/mol-atom ± 1500298.15unspecified-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[1] Liu 2016
cites Karvelis 1959
Table 4, p. 6, row 5
report
Zn3P2Zn3P2-44.66 kJ/mol-atom ± 0.3298.15experimental-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[3] Tu 2009
cites Karvelis 1959
Table 3, p. 4, row 9
report
Zn3P2Zn3P2-36.356 kJ/mol-atom298.15model-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[3] Tu 2009Table 3, p. 4, row 10
report
Zn3P2Zn3P2-36.356 kJ/mol-atom298.15model-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[1] Liu 2016
cites Tu 2009 doi
Table 4, p. 6, row 6
report
Zn3P2Zn3P2-34.64 kJ/mol-atom ± 10400298.15unspecified-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[1] Liu 2016
cites Sirota 2016
Table 4, p. 6, row 2
report
Zn3P2Zn3P2-34.64 kJ/mol-atom ± 2.08298.15experimental-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[3] Tu 2009
cites Sirota 1975
Table 3, p. 4, row 6
report
Zn3P2Zn3P2-33.06 kJ/mol-atom ± 4.18298.15experimental-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[3] Tu 2009
cites Schoonmaker 1967 doi
Table 3, p. 4, row 7
report
Zn3P2Zn3P2-33.06 kJ/mol-atom ± 20900298.15experimental-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[1] Liu 2016
cites Schoonmaker 1967 doi
Table 4, p. 6, row 3
report
Zn3P2Zn3P2-30.3678 kJ/mol-atom298.15model-18.169 (mp-aaaaadbr)-27.768 (oqmd-14030)[1] Liu 2016Table 4, p. 6, row 1
report
ZnP2-127.4 kJ/mol (basis unstated) ± 7.5298.15unspecified[1] Liu 2016
cites Sirota 2016
Table 4, p. 6, row 8
report
ZnP2-126.85 kJ/mol (basis unstated)298.15model[2] Ghasemi 2019
cites Tu 2009 doi
Table 2, p. 3, row 12
report
ZnP2-126.85 kJ/mol (basis unstated)298.15model[1] Liu 2016
cites Tu 2009 doi
Table 4, p. 6, row 9
report
ZnP2-92.9282 kJ/mol (basis unstated)298.15model[2] Ghasemi 2019
cites Liu 2016 doi
Table 2, p. 3, row 11
report
ZnP2-92.9282 kJ/mol (basis unstated)298.15model[1] Liu 2016Table 4, p. 6, row 7
report
ZnP2ZnP2-42.4667 kJ/mol-atom ± 2.5298.15experimental-23.975 (mp-aaaaaqib)-40.016 (oqmd-31359)[3] Tu 2009
cites Sirota 1975
Table 3, p. 4, row 11
report
ZnP2ZnP2-42.2833 kJ/mol-atom298.15model-23.975 (mp-aaaaaqib)-40.016 (oqmd-31359)[3] Tu 2009Table 3, p. 4, row 12
report

Other properties

Phase transition (25)

Phase transition, P–Zn system
PropertyValueT (K)Phases / compositionClassSourceLocationQuote
Phase transition1113.15 K1113.15congruent melting: L -> βZn3P2
L: P 0.4; βZn3P2: P 0.4
experimental[2] Ghasemi 2019
cites Ugai 1968
Table 4, p. 6, row 15
report
Phase transition1118.15 K1118.15polymorphic: αZn3P2 -> βZn3P2
αZn3P2: P 0.4; βZn3P2: P 0.4
experimental[2] Ghasemi 2019
cites Pistorius 1977
Table 4, p. 6, row 8
report
Phase transition1123.15 K1123.15polymorphic: αZn3P2 -> βZn3P2
αZn3P2: P 0.4; βZn3P2: P 0.4
experimental[2] Ghasemi 2019
cites Schneider 1973
Table 4, p. 6, row 7
report
Phase transition1123.15 K1123.15polymorphic: αZn3P2 -> βZn3P2
αZn3P2: P 0.4; βZn3P2: P 0.4
model[2] Ghasemi 2019Table 4, p. 6, row 11
report
Phase transition1153.15 K1153.15polymorphic: αZn3P2 -> βZn3P2
αZn3P2: P 0.4; βZn3P2: P 0.4
experimental[2] Ghasemi 2019
cites Berak 1969
Table 4, p. 6, row 9
report
Phase transition1261.15 K1261.15polymorphic: αZnP2 -> βZnP2
αZnP2: P 0.666667; βZnP2: P 0.666667
model[2] Ghasemi 2019Table 4, p. 6, row 26
report
Phase transition1263.15 K1263.15polymorphic: αZnP2 -> βZnP2
αZnP2: P 0.666; βZnP2: P 0.666667
experimental[2] Ghasemi 2019
cites Berak 1969
Table 4, p. 6, row 24
report
Phase transition1263.15 K1263.15polymorphic: αZnP2 -> βZnP2
αZnP2: P 0.666667; βZnP2: P 0.666667
model[2] Ghasemi 2019Table 4, p. 6, row 25
report
Phase transition1307.15 K1307.15congruent melting: L -> ZnP2
L: P 0.00667; ZnP2: P 0.666667
unspecified[1] Liu 2016
cites Tu 2009 doi
Table 5, p. 6, row 12
report
Phase transition1311.15 K1311.15congruent melting: L -> βZnP2
L: P 0.666667; βZnP2: P 0.666667
model[2] Ghasemi 2019Table 4, p. 6, row 30
report
Phase transition1311.55 K1311.55congruent melting: L -> ZnP2
L: P 0.00667; ZnP2: P 0.666667
unspecified[1] Liu 2016Table 5, p. 6, row 11
report
Phase transition1312.15 K1312.15congruent melting: L -> βZnP2
L: P 0.666667; βZnP2: P 0.666667
model[2] Ghasemi 2019Table 4, p. 6, row 29
report
Phase transition1313.15 K1313.15congruent melting: L -> ZnP2
L: P 0.00667; ZnP2: P 0.666667
experimental[1] Liu 2016
cites Dutkiewlcz 1991 doi
Table 5, p. 6, row 13
report
Phase transition1313.15 K1313.15congruent melting: L -> βZnP2
L: P 0.666; βZnP2: P 0.666
experimental[2] Ghasemi 2019
cites Berak 1969
Table 4, p. 6, row 28
report
Phase transition1313.15 K1313.15congruent melting: L -> βZnP2
L: P 0.666667; βZnP2: P 0.666667
model[2] Ghasemi 2019Table 4, p. 6, row 31
report
Phase transition1313.15 K1313.15βZnP2 + liquidexperimental[2] Ghasemi 2019
cites Berak 1969
p. 3
report
Furthermore, βZnP2 melts at 1040 ∘ C and undergoes the α → β transformation at 990 ∘ C as reported by Berak and Pruchnik [35].
Phase transition1433.15 K1433.15congruent melting: L -> βZn3P2
L: P 0.4; βZn3P2: P 0.4
experimental[2] Ghasemi 2019
cites Schneider 1973
Table 4, p. 6, row 13
report
Phase transition1433.15 K1433.15βZn3P2 + liquidexperimental[2] Ghasemi 2019
cites Schneider 1973
p. 2
report
The α → β transformation of this phase occurs at 850 ∘ C, while the melting of βZn3 P2 occurs at 1160 ∘ C and according to Schneider and Krumnacker [36].
Phase transition1436.15 K1436.15congruent melting: L -> βZn3P2
L: P 0.4; βZn3P2: P 0.4
model[2] Ghasemi 2019Table 4, p. 6, row 18
report
Phase transition1437.15 K1437.15congruent melting: L -> βZn3P2
L: P 0.4; βZn3P2: P 0.4
model[2] Ghasemi 2019Table 4, p. 6, row 16
report
Phase transition1438.15 K1438.15congruent melting: L -> βZn3P2
L: P 0.4; βZn3P2: P 0.4
model[2] Ghasemi 2019Table 4, p. 6, row 17
report
Phase transition1443.15 K1443.15congruent melting: L -> Zn3P2
L: P 0.004; Zn3P2: P 0.4
unspecified[1] Liu 2016
cites Tu 2009 doi
Table 5, p. 6, row 6
report
Phase transition1446.15 K1446.15congruent melting: L -> Zn3P2
L: P 0.004; Zn3P2: P 0.4
experimental[1] Liu 2016
cites Dutkiewlcz 1991 doi
Table 5, p. 6, row 7
report
Phase transition1448.15 K1448.15congruent melting: L -> Zn3P2
L: P 0.004; Zn3P2: P 0.4
unspecified[1] Liu 2016Table 5, p. 6, row 5
report
Phase transition1466.15 K1466.15congruent melting: L -> βZn3P2
L: P 0.4; βZn3P2: P 0.4
experimental[2] Ghasemi 2019
cites Berak 1969
Table 4, p. 6, row 14
report

Formation (14)

Formation, P–Zn system
PropertyValueT (K)Phases / compositionClassSourceLocationQuote
Gibbs energy of formation
printed: ΔfG298
-31.7414 kJ/mol-atom298.15Zn3P2
alloy: Zn 0.6
model[1] Liu 2016Table 4, p. 6, row 1
report
Gibbs energy of formation
printed: ΔfG298
-33.762 kJ/mol-atom298.15Zn3P2
alloy: P 0.4, Zn 0.6
model[3] Tu 2009Table 3, p. 4, row 10
report
Gibbs energy of formation
printed: ΔfG°298
-168.81 kJ/mol (basis unstated)298.15Zn3P2
alloy: Zn 0.6
model[2] Ghasemi 2019
cites Tu 2009 doi
Table 2, p. 3, row 2
report
Gibbs energy of formation
printed: ΔfG298
-36.02 kJ/mol-atom ± 13000298.15Zn3P2
alloy: Zn 0.6
unspecified[1] Liu 2016
cites Sirota 2016
Table 4, p. 6, row 2
report
Gibbs energy of formation
printed: ΔfG298
-36.02 kJ/mol-atom ± 2.6298.15Zn3P2
alloy: P 0.4, Zn 0.6
experimental[3] Tu 2009
cites Sirota 1975
Table 3, p. 4, row 6
report
Gibbs energy of formation
printed: ΔfG298
-33.762 kJ/mol-atom298.15Zn3P2
alloy: Zn 0.6
model[1] Liu 2016
cites Tu 2009 doi
Table 4, p. 6, row 6
report
Gibbs energy of formation
printed: ΔfG°298
-158.707 kJ/mol (basis unstated)298.15Zn3P2
alloy: Zn 0.6
model[2] Ghasemi 2019
cites Liu 2016 doi
Table 2, p. 3, row 1
report
Gibbs energy of formation
printed: ΔfG298
-40.9667 kJ/mol-atom ± 1.83333298.15ZnP2
alloy: P 0.666667, Zn 0.333333
experimental[3] Tu 2009
cites Sirota 1975
Table 3, p. 4, row 11
report
Gibbs energy of formation
printed: ΔfG°298
-118.032 kJ/mol (basis unstated)298.15ZnP2
alloy: Zn 0.333333
model[2] Ghasemi 2019
cites Liu 2016 doi
Table 2, p. 3, row 11
report
Gibbs energy of formation
printed: ΔfG°298
-126.2 kJ/mol (basis unstated)298.15ZnP2
alloy: Zn 0.333333
model[2] Ghasemi 2019
cites Tu 2009 doi
Table 2, p. 3, row 12
report
Gibbs energy of formation
printed: ΔfG298
-122.9 kJ/mol (basis unstated) ± 5.5298.15ZnP2
alloy: Zn 0.333333
unspecified[1] Liu 2016
cites Sirota 2016
Table 4, p. 6, row 8
report
Gibbs energy of formation
printed: ΔfG298
-126.2 kJ/mol (basis unstated)298.15ZnP2
alloy: Zn 0.333333
model[1] Liu 2016
cites Tu 2009 doi
Table 4, p. 6, row 9
report
Gibbs energy of formation
printed: ΔfG298
-42.0667 kJ/mol-atom298.15ZnP2
alloy: P 0.666667, Zn 0.333333
model[3] Tu 2009Table 3, p. 4, row 12
report
Gibbs energy of formation
printed: ΔfG298
-118.032 kJ/mol (basis unstated)298.15ZnP2
alloy: Zn 0.333333
model[1] Liu 2016Table 4, p. 6, row 7
report

Crystal structure (8)

Crystal structure, P–Zn system
PropertyValueT (K)Phases / compositionClassSourceLocationQuote
Lattice a5.08 Åβ-Zn3P2
alloy: Zn 0.6
experimental[1] Liu 2016
cites Berak 1969
Table 1, p. 3, row 6
report
Lattice a8.85 Åβ-ZnP2
alloy: Zn 0.333333
experimental[1] Liu 2016
cites Hegyi 1963 doi
Table 1, p. 3, row 5
report
Lattice a8.089 Å298.15α-Zn3P2
alloy: Zn 0.6
experimental[1] Liu 2016
cites Pistorius 1977
Table 1, p. 3, row 4
report
Lattice a5.08 Å298.15α-ZnP2
alloy: Zn 0.333333
experimental[1] Liu 2016
cites Hegyi 1963 doi
Table 1, p. 3, row 3
report
Lattice b7.29 Åβ-ZnP2
alloy: Zn 0.333333
experimental[1] Liu 2016
cites Hegyi 1963 doi
Table 1, p. 3, row 5
report
Lattice c7.56 Åβ-ZnP2
alloy: Zn 0.333333
experimental[1] Liu 2016
cites Hegyi 1963 doi
Table 1, p. 3, row 5
report
Lattice c11.407 Å298.15α-Zn3P2
alloy: Zn 0.6
experimental[1] Liu 2016
cites Pistorius 1977
Table 1, p. 3, row 4
report
Lattice c18.59 Å298.15α-ZnP2
alloy: Zn 0.333333
experimental[1] Liu 2016
cites Hegyi 1963 doi
Table 1, p. 3, row 3
report

Sources

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

  1. Ya Liu, Bin Zhou, Wei Lv, Changjun Wu, Xuping Su, Jianhua Wang, Experimental investigation and thermodynamic assessment of the Zn–Si–P system, Surface and Coatings Technology 306, 370-377 (2016). doi:10.1016/j.surfcoat.2016.01.016
  2. Masoomeh Ghasemi, E. Stutz, S. Escobar Steinvall, M. Zamani, A. Fontcuberta i Morral, Thermodynamic re-assessment of the Zn–P binary system, Materialia 6, 100301 (2019). doi:10.1016/j.mtla.2019.100301
  3. Hao Tu, Fucheng Yin, Xuping Su, Ya Liu, Xinming Wang, Experimental investigation and thermodynamic modeling of the Al–P–Zn ternary system, Calphad 33, 755-760 (2009). doi:10.1016/j.calphad.2009.10.003