K–Sb system

21 accepted literature values from 1 paper(s) (experimental 13, model 8); 1 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · interactive phase diagram · phases (9) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	13
model	8

Accepted values by property group
Property group	Values
invariant reaction	13
phase transition	8

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
KSb-13Liu.tdb	Y. Liu, J. Xu, Z. Kang, J. Wang, Thermochim. Acta, 569, 119-26(2013). doi:10.1016/j.tca.2013.07.009	`74f0dfc1d973f462d81aaa25c54e999c23c0efbcd0903483352f11df10af6a63`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
KSb-13Liu.tdb	777.23	LIQUID (x(Sb) 0.41631) + K5SB4 (x(Sb) 0.44444) + KSB (x(Sb) 0.5)
KSb-13Liu.tdb	739.19	K3SB_D018 (x(Sb) 0.25) + LIQUID (x(Sb) 0.38975) + K5SB4 (x(Sb) 0.44444)
KSb-13Liu.tdb	670.88	KSB2 (x(Sb) 0.66667) + LIQUID (x(Sb) 0.67657) + RHOMBOHEDRAL_A7 (x(Sb) 1)
KSb-13Liu.tdb	670.05	KSB (x(Sb) 0.5) + LIQUID (x(Sb) 0.64864) + KSB2 (x(Sb) 0.66667)
KSb-13Liu.tdb	336.53	LIQUID (x(Sb) 0) + BCC_A2 (x(Sb) 0) + K3SB_D018 (x(Sb) 0.25)

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the K–Sb system (13)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
775.5	liq + KSb -> K5Sb4	L: Sb 0.42; KSb: Sb 0.5; K5Sb4: Sb 0.444444	experimental	[1] Liu 2013 cites ref. 26	Table 6, p. 7, row 9 report
771	liq + KSb -> K5Sb4	KSb: Sb 0.5; K5Sb4: Sb 0.444444	model	[1] Liu 2013	Table 6, p. 7, row 7 report
758.6	liq + KSb -> K5Sb4	L: Sb 0.42; KSb: Sb 0.5; K5Sb4: Sb 0.444444	experimental	[1] Liu 2013 cites ref. 25	Table 6, p. 7, row 8 report
737.7	eutectic: liq -> KSb + KSb2	L: Sb 0.65; KSb: Sb 0.5; KSb2: Sb 0.666667	experimental	[1] Liu 2013 cites ref. 25	Table 6, p. 7, row 16 report
734	eutectic: liq -> K5Sb4 + K3Sb	L: Sb 0.39; K5Sb4: Sb 0.444444; K3Sb: Sb 0.25	model	[1] Liu 2013	Table 6, p. 7, row 5 report
733	eutectic: liq -> K5Sb4 + K3Sb	L: Sb 0.36; K5Sb4: Sb 0.444444; K3Sb: Sb 0.25	experimental	[1] Liu 2013 cites ref. 26	Table 6, p. 7, row 6 report
680.6	eutectic: liq -> Sb + KSb2	L: Sb 0.68; Sb: Sb 1; KSb2: Sb 0.666667	experimental	[1] Liu 2013 cites ref. 26	Table 6, p. 7, row 21 report
673.2	eutectic: liq -> Sb + KSb2	L: Sb 0.68; Sb: Sb 1; KSb2: Sb 0.666667	experimental	[1] Liu 2013 cites ref. 25	Table 6, p. 7, row 20 report
670	eutectic: liq -> Sb + KSb2	L: Sb 0.68; Sb: Sb 1; KSb2: Sb 0.666667	model	[1] Liu 2013	Table 6, p. 7, row 19 report
669.7	eutectic: liq -> KSb + KSb2	L: Sb 0.65; KSb: Sb 0.5; KSb2: Sb 0.666667	model	[1] Liu 2013	Table 6, p. 7, row 15 report
668.9	eutectic: liq -> KSb + KSb2	KSb: Sb 0.5; KSb2: Sb 0.666667	experimental	[1] Liu 2013 cites ref. 26	Table 6, p. 7, row 17 report
336.71	eutectic: liq -> K + K3Sb	K3Sb: Sb 0.25	experimental	[1] Liu 2013 cites ref. 25	Table 6, p. 7, row 2 report
336.5	eutectic: liq -> K + K3Sb	K3Sb: Sb 0.25	model	[1] Liu 2013	Table 6, p. 7, row 1 report

Other properties

Phase transition (8)

Phase transition, K–Sb system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	671 K	671	liq -> KSb2 L: Sb 0.666667; KSb2: Sb 0.666667	model	[1] Liu 2013	Table 6, p. 7, row 18 report
Phase transition	877 K	877	liq -> KSb L: Sb 0.5; KSb: Sb 0.5	experimental	[1] Liu 2013 cites Saboungi 1988 doi	Table 6, p. 7, row 14 report
Phase transition	878 K	878	liq -> KSb L: Sb 0.5; KSb: Sb 0.5	experimental	[1] Liu 2013 cites ref. 25	Table 6, p. 7, row 12 report
Phase transition	879 K	879	liq -> KSb L: Sb 0.5; KSb: Sb 0.5	model	[1] Liu 2013	Table 6, p. 7, row 10 report
Phase transition	883 K	883	liq -> KSb L: Sb 0.5; KSb: Sb 0.5	experimental	[1] Liu 2013 cites Redslob 1982 doi	Table 6, p. 7, row 11 report
Phase transition	883 K	883	liq -> KSb L: Sb 0.5; KSb: Sb 0.5	experimental	[1] Liu 2013 cites ref. 26	Table 6, p. 7, row 13 report
Phase transition	1086 K	1086	liq -> K3Sb L: Sb 0.25; K3Sb: Sb 0.25	experimental	[1] Liu 2013 cites ref. 25	Table 6, p. 7, row 4 report
Phase transition	1087 K	1087	liq -> K3Sb L: Sb 0.25; K3Sb: Sb 0.25	model	[1] Liu 2013	Table 6, p. 7, row 3 report

Sources

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

Yajun Liu, Jun Xu, Zhitao Kang, Jiang Wang, Thermodynamic descriptions and phase diagrams for Sb–Na and Sb–K binary systems, Thermochimica Acta 569, 119-126 (2013). doi:10.1016/j.tca.2013.07.009

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}
}