Pb–Sb system

27 accepted literature values from 2 paper(s) (experimental 25, model 2); 4 calculated phase diagram(s). 3 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 (5) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence class	Values
experimental	25
model	2

Accepted values by property group
Property group	Values
invariant reaction	5
phase transition	9
phase equilibrium	7
mixing / partial	6

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
PbSb-09Has.tdb	S. Hassam, D. Boa, Y. Fouque, K.P. Kotchi, J. Rogez, J. Alloys Compd., 476, 74-78(2009). doi:10.1016/j.jallcom.2008.09.002	`2166e8958db172ec9d8794f94d2f157fd85e3df5a79f6d3a6383c255e33edf37`	viewer · TDB · JSON
PbSb-13Gie.tdb	W. Gierlotka, C. Lee, P. Chumpanaya, M.A. Rahman, T.-N. Ko, J. Phase Equilib. Diffus., 34, 421-24(2013). doi:10.1007/s11669-013-0252-z	`dfa5cb119cb28aaaf975cfed106584b01e2051d5d9159faaf0684da9aef2152f`	viewer · TDB · JSON
PbSb-94Lee.tdb	B.-J. Lee, C.-S. Oh, D.N. Lee, J. Alloys Compd., 215, 293-301(1994). doi:10.1016/0925-8388(94)90857-5	`880084b4a6eaac5497eb23fb2c2b5cca45b4e53b9acd3a63a97f7ea41f96823d`	viewer · TDB · JSON
PbSb-95Oht-LB.tdb	H. Ohtani, K. Okuda, K. Ishida, J. Phase Equilib., 16, 416-29(1995). doi:10.1007/BF02645349	`138f59b0ca163055283c46560aeb85ad4ea81774ae3d20a8eb2e85e7fd2a27b4`	viewer · TDB · JSON

Calculated three-phase invariants (model, mole fraction of the second component)
TDB file	T (K)	Phases at the invariant
PbSb-09Has.tdb	526.23	FCC_A1 (x(Sb) 0.05902) + LIQUID (x(Sb) 0.17123) + RHOMBOHEDRAL_A7 (x(Sb) 0.98715)
PbSb-13Gie.tdb	524.8	FCC_A1 (x(Sb) 0.05156) + LIQUID (x(Sb) 0.16819) + RHOMBOHEDRAL_A7 (x(Sb) 0.98317)
PbSb-94Lee.tdb	522.19	FCC_A1 (x(Sb) 0.05765) + LIQUID (x(Sb) 0.17461) + RHOMBOHEDRAL_A7 (x(Sb) 0.981)
PbSb-95Oht-LB.tdb	525.51	FCC_A1 (x(Sb) 0.06018) + LIQUID (x(Sb) 0.17721) + RHOMBOHEDRAL_A7 (x(Sb) 0.98711)

Convex hulls: Materials Project DFT hull · OQMD DFT hull · CALPHAD hull PbSb-09Has · CALPHAD hull PbSb-94Lee · CALPHAD hull PbSb-95Oht-LB

Invariant reactions (literature)

Invariant reactions reported in the literature for the Pb–Sb system (5)
T (K)	Reaction / phases	Compositions (mole fraction)	Class	Source	Location
526.15	eutectic: L = fcc(Pb) + rhombo(Sb)		experimental	[1] Hassam 2009 cites Othani 1995	Table 4, p. 4, row 3 report
525.39	eutectic: L = fcc(Pb) + rhombo(Sb)	L: Sb 0.171	model	[1] Hassam 2009	Table 4, p. 4, row 5 report
525.29	eutectic: L = fcc(Pb) + rhombo(Sb)	L: Sb 0.1675	experimental	[1] Hassam 2009	Table 4, p. 4, row 4 report
525.15	eutectic: L = fcc(Pb) + rhombo(Sb)	L: Sb 0.175	experimental	[1] Hassam 2009 cites Redlich 1948	Table 4, p. 4, row 1 report
524.85	eutectic: L = fcc(Pb) + rhombo(Sb)	L: Sb 0.175	model	[1] Hassam 2009 cites Ashtakala 1981 doi	Table 4, p. 4, row 2 report

Other properties

Phase transition (9)

Phase transition, Pb–Sb system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Phase transition	525.3 K	525.3	eutectic: X_Pb=0.600 X_Sb=0.400 alloy: Pb 0.6, Sb 0.4	experimental	[1] Hassam 2009	Table 2, p. 2, row 12 report
Phase transition	525.3 K	525.3	eutectic: X_Pb=0.700 X_Sb=0.300 alloy: Pb 0.7, Sb 0.3	experimental	[1] Hassam 2009	Table 2, p. 2, row 11 report
Phase transition	525.3 K	525.3	eutectic: X_Pb=0.800 X_Sb=0.200 alloy: Pb 0.8, Sb 0.2	experimental	[1] Hassam 2009	Table 2, p. 2, row 10 report
Phase transition	525.3 K	525.3	eutectic: X_Pb=0.900 X_Sb=0.100 alloy: Pb 0.9, Sb 0.1	experimental	[1] Hassam 2009	Table 2, p. 2, row 8 report
Phase transition	525.3 K	525.3	eutectic: X_Pb=0.930 X_Sb=0.070 alloy: Pb 0.93, Sb 0.07	experimental	[1] Hassam 2009	Table 2, p. 2, row 7 report
Phase transition	525.4 K	525.4	eutectic: X_Pb=0.850 X_Sb=0.150 alloy: Pb 0.85, Sb 0.15	experimental	[1] Hassam 2009	Table 2, p. 2, row 9 report
Phase transition	526.15 K	526.15	eutectic alloy: Pb 0.810497, Sb 0.189503	experimental	[2] Ohtani 1995	Table 4, p. 6, row 2 report
Phase transition	527.15 K	527.15	eutectic alloy: Pb 0.660729, Sb 0.339271	experimental	[2] Ohtani 1995	Table 4, p. 6, row 4 report
Phase transition	571.4 K	571.4	other	experimental	[1] Hassam 2009	Table 2, p. 2, row 1 report

Phase equilibrium (7)

Phase equilibrium, Pb–Sb system
Property	T (K)	Phases / composition	Class	Source	Location
Phase composition	536.9	other liquid: Pb 0.85, Sb 0.15	experimental	[1] Hassam 2009	Table 2, p. 2, row 3 report
Phase composition	552.15	other liquid: Pb 0.810497, Sb 0.189503	experimental	[2] Ohtani 1995	Table 4, p. 6, row 1 report
Phase composition	558.15	other liquid: Pb 0.660729, Sb 0.339271	experimental	[2] Ohtani 1995	Table 4, p. 6, row 3 report
Phase composition	558.5	other liquid: Pb 0.9, Sb 0.1	experimental	[1] Hassam 2009	Table 2, p. 2, row 2 report
Phase composition	558.7	other liquid: Pb 0.8, Sb 0.2	experimental	[1] Hassam 2009	Table 2, p. 2, row 4 report
Phase composition	635.2	other liquid: Pb 0.7, Sb 0.3	experimental	[1] Hassam 2009	Table 2, p. 2, row 5 report
Phase composition	673.2	other liquid: Pb 0.6, Sb 0.4	experimental	[1] Hassam 2009	Table 2, p. 2, row 6 report

Mixing / partial (6)

Mixing / partial, Pb–Sb system
Property	Value	T (K)	Phases / composition	Class	Source	Location
Enthalpy of mixing printed: ΔmixHm	-0.0511 kJ/mol (basis unstated)	973	liquid alloy: Pb 0.405, Sb 0.595	experimental	[1] Hassam 2009	Table 1, p. 2, row 6 report
Enthalpy of mixing printed: ΔmixHm	-0.0515 kJ/mol (basis unstated)	973	liquid alloy: Pb 0.797, Sb 0.203	experimental	[1] Hassam 2009	Table 1, p. 2, row 1 report
Enthalpy of mixing printed: ΔmixHm	-0.0512 kJ/mol (basis unstated)	973	liquid alloy: Pb 0.405, Sb 0.595	experimental	[1] Hassam 2009	Table 1, p. 2, row 5 report
Enthalpy of mixing printed: ΔmixHm	-0.0689 kJ/mol (basis unstated)	973	liquid alloy: Pb 0.55, Sb 0.45	experimental	[1] Hassam 2009	Table 1, p. 2, row 4 report
Enthalpy of mixing printed: ΔmixHm	-0.064 kJ/mol (basis unstated)	973	liquid alloy: Pb 0.7017, Sb 0.2983	experimental	[1] Hassam 2009	Table 1, p. 2, row 3 report
Enthalpy of mixing printed: ΔmixHm	-0.0429 kJ/mol (basis unstated)	973	liquid alloy: Pb 0.7825, Sb 0.2175	experimental	[1] Hassam 2009	Table 1, p. 2, row 2 report

Sources

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

S. Hassam, D. Boa, Y. Fouque, K.P. Kotchi, J. Rogez, Thermodynamic investigation of the Pb – Sb system, Journal of Alloys and Compounds 476, 74-78 (2009). doi:10.1016/j.jallcom.2008.09.002
H. Ohtani, K. Okuda, K. Ishida, Thermodynamic study of phase equilibria in the Pb-Sn-Sb system, JPE 16, 416-429 (1995). doi:10.1007/bf02645349

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}
}