In–Na phases

8 phases (tier A 5, tier C 2, liquid 1); 6 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: interactive registry · full JSON · In–Na system page · Markdown · field reference

Phases of the In–Na system (8)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
TETRAGONAL_A6 phase:in-na:a6-tetragonal	In · A6 · tI2 · I4/mmm (139)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–433.1 K, x(Na) 0–0.04843	4	1
BCC_A2 phase:in-na:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–370.87 K, x(Na) 0.99989–1	6	1
FCC_A1 phase:in-na:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
HCP_A3 phase:in-na:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 1 calculated diagram(s)	0	1
IN8NA5 phase:in-na:in8na5	In12Na7 · tP228 · P4_2/nmc (137)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 300–712.79 K, x(Na) 0.38462–0.38462	10	1
INNA_B32 phase:in-na:inna-b32	NaTl · B32 · cF16 · Fd-3m (227)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–618.58 K, x(Na) 0.5–0.5	11	1
INNA3 phase:in-na:inna3	Na2Tl · oC48 · C222_1 (20)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 1 of 1 calculated diagram(s): 370–559 K, x(Na) 0.75–0.75	2	1
LIQUID phase:in-na:liquid	liquid	liquid	stable in 1 of 1 calculated diagram(s): 369.01–2500 K, x(Na) 0–1	20	1

TETRAGONAL_A6 (In–Na)

Id: phase:in-na:a6-tetragonal; status assigned
Structure: In · A6 · tI2 · I4/mmm (139); type st:a6-in-ti2; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–433.1 K, x(Na) 0–0.04843
Literature: 4 values (4 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:in-na:a6-tetragonal, corpus:phase:in-na:tetragonal-a6
paper: paper:10.1007/s11669-013-0258-6:(In)
tdb: tdb:InNa-13Wan.tdb:TETRAGONAL_A6

TDB models of TETRAGONAL_A6 (1): PHASE and CONSTITUENT statements as written

InNa-13Wan.tdb: TETRAGONAL_A6, type code %, sha256 6ddab60c74e5461a…

42: PHASE TETRAGONAL_A6 % 1 1 !
43: CONST TETRAGONAL_A6 : IN% NA : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-013-0258-6 Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19703760107 Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970).
cited as the source of values for this phase
doi:10.1016/0022-1902(69)80139-9 G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969).
cited as the source of values for this phase

BCC_A2 (In–Na)

Id: phase:in-na:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 300–370.87 K, x(Na) 0.99989–1
Literature: 6 values (6 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:in-na:bcc-a2
paper: paper:10.1007/s11669-013-0258-6:βNa(bcc)
tdb: tdb:InNa-13Wan.tdb:BCC_A2

TDB models of BCC_A2 (1): PHASE and CONSTITUENT statements as written

InNa-13Wan.tdb: BCC_A2, type code %B, sha256 6ddab60c74e5461a…

32: PHASE BCC_A2 %B 2 1 3 !
33: CONST BCC_A2 : IN NA% : VA : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-013-0258-6 Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19703760107 Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970).
cited as the source of values for this phase
doi:10.1016/0022-1902(69)80139-9 G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969).
cited as the source of values for this phase

FCC_A1 (In–Na)

Id: phase:in-na:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:in-na:fcc-a1
tdb: tdb:InNa-13Wan.tdb:FCC_A1

TDB models of FCC_A1 (1): PHASE and CONSTITUENT statements as written

InNa-13Wan.tdb: FCC_A1, type code %A, sha256 6ddab60c74e5461a…

27: PHASE FCC_A1 %A 2 1 1 !
28: CONST FCC_A1 : IN NA : VA : !

Example references (1 of 1; assessments first):

doi:10.1007/s11669-013-0258-6 Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013).
assessment that models this phase

HCP_A3 (In–Na)

Id: phase:in-na:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: not stable in 1 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:in-na:hcp-a3
tdb: tdb:InNa-13Wan.tdb:HCP_A3

TDB models of HCP_A3 (1): PHASE and CONSTITUENT statements as written

InNa-13Wan.tdb: HCP_A3, type code %A, sha256 6ddab60c74e5461a…

37: PHASE HCP_A3 %A 2 1 0.5 !
38: CONST HCP_A3 : IN NA : VA : !

Example references (1 of 1; assessments first):

doi:10.1007/s11669-013-0258-6 Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013).
assessment that models this phase

IN8NA5 (In–Na)

Id: phase:in-na:in8na5; status assigned
Structure: In12Na7 · tP228 · P4_2/nmc (137); type st:in12na7-tp228; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: In 0.6154, Na 0.3846
Stability: stable in 1 of 1 calculated diagram(s): 300–712.79 K, x(Na) 0.38462–0.38462
Literature: 10 values (10 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:in-na:in8na5
paper: paper:10.1007/s11669-013-0258-6:In8Na5
tdb: tdb:InNa-13Wan.tdb:IN8NA5

TDB models of IN8NA5 (1): PHASE and CONSTITUENT statements as written

InNa-13Wan.tdb: IN8NA5, type code %, sha256 6ddab60c74e5461a…

47: PHASE IN8NA5 % 2 8 5 !
48: CONST IN8NA5 : IN : NA : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-013-0258-6 Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19703760107 Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970).
cited as the source of values for this phase
doi:10.1016/0022-1902(69)80139-9 G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969).
cited as the source of values for this phase
doi:10.1515/zpch-1933-2024 E. Zintl, S. Neumayr, Über den Gitterbau von NaIn und die Deformation der Atome in Legierungen, Zeitschrift für Physikalische Chemie 20B, 272-275 (1933).
cited as the source of values for this phase

INNA_B32 (In–Na)

Id: phase:in-na:inna-b32; status assigned
Structure: NaTl · B32 · cF16 · Fd-3m (227); type st:b32-natl-cf16; tier A: standard phase name; confidence high
Stoichiometry: In 0.5000, Na 0.5000
Stability: stable in 1 of 1 calculated diagram(s): 300–618.58 K, x(Na) 0.5–0.5
Literature: 11 values (11 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:in-na:inna-b32
paper: paper:10.1007/s11669-013-0258-6:InNa
tdb: tdb:InNa-13Wan.tdb:INNA_B32

TDB models of INNA_B32 (1): PHASE and CONSTITUENT statements as written

InNa-13Wan.tdb: INNA_B32, type code %, sha256 6ddab60c74e5461a…

52: PHASE INNA_B32 % 2 1 1 !
53: CONST INNA_B32 : IN : NA : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-013-0258-6 Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19703760107 Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970).
cited as the source of values for this phase
doi:10.1016/0022-1902(69)80139-9 G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969).
cited as the source of values for this phase
doi:10.1515/zpch-1933-2024 E. Zintl, S. Neumayr, Über den Gitterbau von NaIn und die Deformation der Atome in Legierungen, Zeitschrift für Physikalische Chemie 20B, 272-275 (1933).
cited as the source of values for this phase

INNA3 (In–Na)

Id: phase:in-na:inna3; status assigned
Structure: Na2Tl · oC48 · C222_1 (20); type st:na2tl-oc48; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (no_on_hull_entry_in_both, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: In 0.2500, Na 0.7500
Stability: stable in 1 of 1 calculated diagram(s): 370–559 K, x(Na) 0.75–0.75
Literature: 2 values (2 accepted) from 1 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:in-na:inna3
paper: paper:10.1007/s11669-013-0258-6:InNa3
tdb: tdb:InNa-13Wan.tdb:INNA3

TDB models of INNA3 (1): PHASE and CONSTITUENT statements as written

InNa-13Wan.tdb: INNA3, type code %, sha256 6ddab60c74e5461a…

57: PHASE INNA3 % 2 1 3 !
58: CONST INNA3 : IN : NA : !

Example references (1 of 1; assessments first):

doi:10.1007/s11669-013-0258-6 Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013).
assessment that models this phase; reports values for this phase

LIQUID (In–Na)

Id: phase:in-na:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 369.01–2500 K, x(Na) 0–1
Literature: 20 values (20 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:in-na:liquid
paper: paper:10.1007/s11669-013-0258-6:L, paper:10.1007/s11669-013-0258-6:liquid
tdb: tdb:InNa-13Wan.tdb:LIQUID

TDB models of LIQUID (1): PHASE and CONSTITUENT statements as written

InNa-13Wan.tdb: LIQUID, type code %, sha256 6ddab60c74e5461a…

22: PHASE LIQUID:L % 1 1 !
23: CONST LIQUID:L : IN NA : !

Example references (4 of 4; assessments first):

doi:10.1007/s11669-013-0258-6 Lei Wang, Yajun Liu, Jing Liu, Thermodynamic Basis and Related Phase Equilibria for In-Na and In-Ca Binary Systems, J. Phase Equilib. Diffus. 34, 447-452 (2013).
assessment that models this phase; reports values for this phase
doi:10.1002/zaac.19703760107 Renate Thümmel, Wilhelm Klemm, Das Verhalten der Alkalimetalle zu den Metallen der Gruppe III B, Zeitschrift anorg allge chemie 376, 44-63 (1970).
cited as the source of values for this phase
doi:10.1016/0022-1902(69)80139-9 G.J. Lamprecht, P. Crowther, The systems sodium-indium and lithium-indium, Journal of Inorganic and Nuclear Chemistry 31, 925-931 (1969).
cited as the source of values for this phase
doi:10.1515/zpch-1933-2024 E. Zintl, S. Neumayr, Über den Gitterbau von NaIn und die Deformation der Atome in Legierungen, Zeitschrift für Physikalische Chemie 20B, 272-275 (1933).
cited as the source of values for this phase

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735970
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 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); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). 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_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@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}
}