P–Sn phases

12 phases (tier A 5, tier C 3, liquid 1, gas 1, needs_review 2); 7 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 · P–Sn system page · Markdown · field reference

Phases of the P–Sn system (12)
Phase	Structure	Basis	Stability (calculated)	TDB models
DIAMOND_A4 phase:p-sn:a4-diamond	C (diamond) · A4 · cF8 · Fd-3m (227)	tier A: standard phase name	not stable in 2 calculated diagram(s)	2
BCT_A5 phase:p-sn:a5-bct	beta-Sn · A5 · tI4 · I4_1/amd (141)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–505.08 K, x(P) 0–0	3
BCC_A2 phase:p-sn:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	not stable in 3 calculated diagram(s)	3
FCC_A1 phase:p-sn:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	not stable in 3 calculated diagram(s)	3
GAS phase:p-sn:gas	gas	gas	stable in 1 of 1 calculated diagram(s): 704.7–2500 K, x(P) 0.91327–1	1
HCP_A3 phase:p-sn:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	not stable in 3 calculated diagram(s)	3
LIQUID phase:p-sn:liquid	liquid	liquid	stable in 3 of 3 calculated diagram(s): 503.9–2500 K, x(P) 0–1	3
RED_P phase:p-sn:p-red		needs_review	stable in 3 of 3 calculated diagram(s): 300–852.48 K, x(P) 1–1	3
WHITE_P phase:p-sn:p-white		needs_review	not stable in 3 calculated diagram(s)	3
SN3P4 phase:p-sn:sn3p4	Sn3P4 · hR19 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–833.73 K, x(P) 0.57143–0.57143	2
SN4P3 phase:p-sn:sn4p3	Sn4As3 · hR7 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–833.06 K, x(P) 0.42857–0.42857	3
SNP3 phase:p-sn:snp3	SnP3 · hR8 · R-3m (166)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 2 of 2 calculated diagram(s): 300–853.04 K, x(P) 0.75–0.75	2

DIAMOND_A4 (P–Sn)

Id: phase:p-sn:a4-diamond; status assigned
Structure: C (diamond) · A4 · cF8 · Fd-3m (227); type st:a4-c-diamond-cf8; tier A: standard phase name; confidence high
Stoichiometry: Sn 1.0000
Stability: not stable in 2 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:p-sn:a4-diamond
tdb: tdb:SnP-11Hin.tdb:DIAMOND_A4, tdb:SnP-24Oik.tdb:DIAMOND_A4

TDB models of DIAMOND_A4 (2): PHASE and CONSTITUENT statements as written

SnP-11Hin.tdb: DIAMOND_A4, type code %, sha256 a6b5bd1aae15dd8a…

39: PHASE DIAMOND_A4 % 1 1 !
40: CONST DIAMOND_A4 : SN : !

SnP-24Oik.tdb: DIAMOND_A4, type code %, sha256 efdb620aa2bffd9c…

49: PHASE DIAMOND_A4 % 1 1 !
50: CONST DIAMOND_A4 : SN : !

Example references (2 of 2; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

BCT_A5 (P–Sn)

Id: phase:p-sn:a5-bct; status assigned
Structure: beta-Sn · A5 · tI4 · I4_1/amd (141); type st:a5-beta-sn-ti4; tier A: standard phase name; confidence high
Stoichiometry: Sn 1.0000
Stability: stable in 3 of 3 calculated diagram(s): 300–505.08 K, x(P) 0–0
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:p-sn:a5-bct
tdb: tdb:SnP-01Mie.tdb:BCT_A5, tdb:SnP-11Hin.tdb:BCT_A5, tdb:SnP-24Oik.tdb:BCT_A5

TDB models of BCT_A5 (3): PHASE and CONSTITUENT statements as written

SnP-01Mie.tdb: BCT_A5, type code %, sha256 d3822dd98636448a…

40: PHASE BCT_A5 % 1 1 !
41: CONST BCT_A5 : SN : !

SnP-11Hin.tdb: BCT_A5, type code %, sha256 a6b5bd1aae15dd8a…

44: PHASE BCT_A5 % 1 1 !
45: CONST BCT_A5 : SN : !

SnP-24Oik.tdb: BCT_A5, type code %, sha256 efdb620aa2bffd9c…

54: PHASE BCT_A5 % 1 1 !
55: CONST BCT_A5 : SN : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

BCC_A2 (P–Sn)

Id: phase:p-sn:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: not stable in 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:p-sn:bcc-a2
tdb: tdb:SnP-01Mie.tdb:BCC_A2, tdb:SnP-11Hin.tdb:BCC_A2, tdb:SnP-24Oik.tdb:BCC_A2

TDB models of BCC_A2 (3): PHASE and CONSTITUENT statements as written

SnP-01Mie.tdb: BCC_A2, type code %B, sha256 d3822dd98636448a…

30: PHASE BCC_A2 %B 2 1 3 !
31: CONST BCC_A2 : P SN : VA : !

SnP-11Hin.tdb: BCC_A2, type code %B, sha256 a6b5bd1aae15dd8a…

29: PHASE BCC_A2 %B 2 1 3 !
30: CONST BCC_A2 : P SN : VA : !

SnP-24Oik.tdb: BCC_A2, type code %B, sha256 efdb620aa2bffd9c…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : P SN : VA : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

FCC_A1 (P–Sn)

Id: phase:p-sn: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 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:p-sn:fcc-a1
tdb: tdb:SnP-01Mie.tdb:FCC_A1, tdb:SnP-11Hin.tdb:FCC_A1, tdb:SnP-24Oik.tdb:FCC_A1

TDB models of FCC_A1 (3): PHASE and CONSTITUENT statements as written

SnP-01Mie.tdb: FCC_A1, type code %A, sha256 d3822dd98636448a…

25: PHASE FCC_A1 %A 2 1 1 !
26: CONST FCC_A1 : P SN : VA : !

SnP-11Hin.tdb: FCC_A1, type code %A, sha256 a6b5bd1aae15dd8a…

24: PHASE FCC_A1 %A 2 1 1 !
25: CONST FCC_A1 : P SN : VA : !

SnP-24Oik.tdb: FCC_A1, type code %A, sha256 efdb620aa2bffd9c…

34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : P SN : VA : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

GAS (P–Sn)

Id: phase:p-sn:gas; status assigned
Structure: gas; type st:gas; gas; confidence high
Stability: stable in 1 of 1 calculated diagram(s): 704.7–2500 K, x(P) 0.91327–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (2): corpus: corpus:phase:p-sn:gas
tdb: tdb:SnP-24Oik.tdb:GAS

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

SnP-24Oik.tdb: GAS, type code %, sha256 efdb620aa2bffd9c…

82: PHASE GAS:G % 1 1 !
83: CONST GAS:G : P P2 P3 P4 SN SN2 : !

Example references (1 of 1; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase

HCP_A3 (P–Sn)

Id: phase:p-sn:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stoichiometry: Sn 1.0000
Stability: not stable in 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:p-sn:hcp-a3
tdb: tdb:SnP-01Mie.tdb:HCP_A3, tdb:SnP-11Hin.tdb:HCP_A3, tdb:SnP-24Oik.tdb:HCP_A3

TDB models of HCP_A3 (3): PHASE and CONSTITUENT statements as written

SnP-01Mie.tdb: HCP_A3, type code %A, sha256 d3822dd98636448a…

35: PHASE HCP_A3 %A 2 1 0.5 !
36: CONST HCP_A3 : SN : VA : !

SnP-11Hin.tdb: HCP_A3, type code %A, sha256 a6b5bd1aae15dd8a…

34: PHASE HCP_A3 %A 2 1 0.5 !
35: CONST HCP_A3 : SN : VA : !

SnP-24Oik.tdb: HCP_A3, type code %A, sha256 efdb620aa2bffd9c…

44: PHASE HCP_A3 %A 2 1 0.5 !
45: CONST HCP_A3 : SN : VA : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

LIQUID (P–Sn)

Id: phase:p-sn:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 503.9–2500 K, x(P) 0–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:p-sn:liquid
tdb: tdb:SnP-01Mie.tdb:LIQUID, tdb:SnP-11Hin.tdb:LIQUID, tdb:SnP-24Oik.tdb:LIQUID

TDB models of LIQUID (3): PHASE and CONSTITUENT statements as written

SnP-01Mie.tdb: LIQUID, type code %, sha256 d3822dd98636448a…

20: PHASE LIQUID:L % 1 1 !
21: CONST LIQUID:L : P SN : !

SnP-11Hin.tdb: LIQUID, type code %, sha256 a6b5bd1aae15dd8a…

19: PHASE LIQUID:L % 1 1 !
20: CONST LIQUID:L : P SN : !

SnP-24Oik.tdb: LIQUID, type code %, sha256 efdb620aa2bffd9c…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : P SN : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

RED_P (P–Sn)

Id: phase:p-sn:p-red; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:RED; no_structure_token
Candidate (sgte_mmc2): (Red P) — Hallstedt 2025 mmc2 row for RED_P: Red P
Stoichiometry: P 1.0000
Stability: stable in 3 of 3 calculated diagram(s): 300–852.48 K, x(P) 1–1
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:p-sn:p-red
tdb: tdb:SnP-01Mie.tdb:RED_P, tdb:SnP-11Hin.tdb:RED_P, tdb:SnP-24Oik.tdb:RED_P

TDB models of RED_P (3): PHASE and CONSTITUENT statements as written

SnP-01Mie.tdb: RED_P, type code %, sha256 d3822dd98636448a…

50: PHASE RED_P % 1 1 !
51: CONST RED_P : P : !

SnP-11Hin.tdb: RED_P, type code %, sha256 a6b5bd1aae15dd8a…

54: PHASE RED_P % 1 1 !
55: CONST RED_P : P : !

SnP-24Oik.tdb: RED_P, type code %, sha256 efdb620aa2bffd9c…

64: PHASE RED_P % 1 1 !
65: CONST RED_P : P : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

WHITE_P (P–Sn)

Id: phase:p-sn:p-white; status needs_review
No structure assigned. Why: name_has_descriptive_tokens:WHITE; no_structure_token
Candidate (sgte_mmc2): (White P) — Hallstedt 2025 mmc2 row for WHITE_P: White P
Stoichiometry: P 1.0000
Stability: not stable in 3 calculated diagram(s)
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:p-sn:p-white
tdb: tdb:SnP-01Mie.tdb:WHITE_P, tdb:SnP-11Hin.tdb:WHITE_P, tdb:SnP-24Oik.tdb:WHITE_P

TDB models of WHITE_P (3): PHASE and CONSTITUENT statements as written

SnP-01Mie.tdb: WHITE_P, type code %, sha256 d3822dd98636448a…

45: PHASE WHITE_P % 1 1 !
46: CONST WHITE_P : P : !

SnP-11Hin.tdb: WHITE_P, type code %, sha256 a6b5bd1aae15dd8a…

49: PHASE WHITE_P % 1 1 !
50: CONST WHITE_P : P : !

SnP-24Oik.tdb: WHITE_P, type code %, sha256 efdb620aa2bffd9c…

59: PHASE WHITE_P % 1 1 !
60: CONST WHITE_P : P : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

SN3P4 (P–Sn)

Id: phase:p-sn:sn3p4; status assigned
Structure: Sn3P4 · hR19 · R-3m (166); type st:sn3p4-hr19; 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: P 0.5714, Sn 0.4286
Stability: stable in 2 of 2 calculated diagram(s): 300–833.73 K, x(P) 0.57143–0.57143
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:p-sn:sn3p4
tdb: tdb:SnP-11Hin.tdb:SN3P4, tdb:SnP-24Oik.tdb:SN3P4

TDB models of SN3P4 (2): PHASE and CONSTITUENT statements as written

SnP-11Hin.tdb: SN3P4, type code %, sha256 a6b5bd1aae15dd8a…

64: PHASE SN3P4 % 2 3 4 !
65: CONST SN3P4 : SN : P : !

SnP-24Oik.tdb: SN3P4, type code %, sha256 efdb620aa2bffd9c…

74: PHASE SN3P4 % 2 3 4 !
75: CONST SN3P4 : SN : P : !

Example references (2 of 2; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

SN4P3 (P–Sn)

Id: phase:p-sn:sn4p3; status assigned
Structure: Sn4As3 · hR7 · R-3m (166); type st:sn4as3-hr7; 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 (dft_space_group_166_matches_6_structure_types, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: P 0.4286, Sn 0.5714
Stability: stable in 3 of 3 calculated diagram(s): 300–833.06 K, x(P) 0.42857–0.42857
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:p-sn:sn4p3
tdb: tdb:SnP-01Mie.tdb:SN4P3, tdb:SnP-11Hin.tdb:SN4P3, tdb:SnP-24Oik.tdb:SN4P3

TDB models of SN4P3 (3): PHASE and CONSTITUENT statements as written

SnP-01Mie.tdb: SN4P3, type code %, sha256 d3822dd98636448a…

55: PHASE SN4P3 % 2 4 3 !
56: CONST SN4P3 : SN : P : !

SnP-11Hin.tdb: SN4P3, type code %, sha256 a6b5bd1aae15dd8a…

59: PHASE SN4P3 % 2 4 3 !
60: CONST SN4P3 : SN : P : !

SnP-24Oik.tdb: SN4P3, type code %, sha256 efdb620aa2bffd9c…

69: PHASE SN4P3 % 2 4 3 !
70: CONST SN4P3 : SN : P : !

Example references (3 of 3; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1016/S0364-5916(01)00031-1 J. Miettinen, Calphad, 25, 67-78(2001).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models this phase

SNP3 (P–Sn)

Id: phase:p-sn:snp3; status assigned
Structure: SnP3 · hR8 · R-3m (166); type st:snp3-hr8; 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_mp, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: P 0.7500, Sn 0.2500
Stability: stable in 2 of 2 calculated diagram(s): 300–853.04 K, x(P) 0.75–0.75
Literature: 0 values (0 accepted) from 0 papers
Interactive: phase registry entry

Names (3): corpus: corpus:phase:p-sn:snp3
tdb: tdb:SnP-11Hin.tdb:SNP3, tdb:SnP-24Oik.tdb:SNP3

TDB models of SNP3 (2): PHASE and CONSTITUENT statements as written

SnP-11Hin.tdb: SNP3, type code %, sha256 a6b5bd1aae15dd8a…

69: PHASE SNP3 % 2 1 3 !
70: CONST SNP3 : SN : P : !

SnP-24Oik.tdb: SNP3, type code %, sha256 efdb620aa2bffd9c…

79: PHASE SNP3 % 2 1 3 !
80: CONST SNP3 : SN : P : !

Example references (2 of 2; assessments first):

doi:10.1007/s11669-024-01112-z Katsunari Oikawa, Nobufumi Ueshima, Thermodynamic Reassessment of the Binary Cu-Sn, Cu-P, and Sn-P and Ternary Cu-Sn-P Systems, J. Phase Equilib. Diffus. 45, 547-566 (2024).
assessment that models this phase
doi:10.1515/htmp.2011.061 Masashi Hino,, Satoshi Iikubo,, Hiroshi Ohtani,, Thermodynamic Analysis of the Cu-Sn-P Ternary System, High Temperature Materials and Processes 30, 387-404 (2011).
assessment that models 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}
}