KCrP2S7

metal

· JVASP-10088· KCrP2S7

KCrP₂S₇ is a mixed-metal thiophosphate compound combining chromium, potassium, phosphorus, and sulfur—a class of materials primarily explored in solid-state chemistry and materials research rather than established industrial production. This compound belongs to the family of sulfidic phosphates, which are investigated for potential applications in ion-conduction, catalysis, and energy storage due to their layered crystal structures and variable oxidation states. While not yet a mainstream engineering material, thiophosphates like KCrP₂S₇ represent an emerging research direction for researchers developing next-generation solid electrolytes, heterogeneous catalysts, and advanced ceramics where sulfur-based frameworks may offer advantages over oxide analogues.

solid-state electrolytes (research)catalytic materials (development)ion conductors (experimental)ceramic composites (exploratory)energy storage systems (emerging)

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	3,768.1	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)	2,133.5	ksi	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.08826	lb/in³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.153	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	43.55	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	28.21	-	DFT · OptB88vdW
Magnetic Moment(μB)	3.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.2136	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000749	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000327	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-224.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	299	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5998	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

KCrP2S7 — Properties & Data | MatWorld

KCrP2S7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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