KLi2As — Properties & Data | MatWorld

KLi2As

ceramic

· KLi2As

KLi2As is an inorganic ceramic compound composed of potassium, lithium, and arsenic. This material belongs to the family of mixed-metal arsenide ceramics and is primarily of research interest rather than established in high-volume production. Potential applications center on solid-state electrochemistry and specialized functional ceramics where the combination of alkali metals and arsenic chemistry may offer unique electronic or ionic transport properties; however, the toxicity concerns associated with arsenic and limited commercial development mean this compound remains largely confined to academic research and exploratory studies in advanced ceramic systems.

research ceramicssolid-state electrochemistryfunctional ceramics (experimental)lithium-containing compounds (research)arsenic-based compounds (specialized applications)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	22.68	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	16.75	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.312	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.8890	eV	DFT · OptB88vdW
↳	2.072	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	11.35	-	DFT · OptB88vdW
↳	11.93	-	DFT · PBE
↳	8.899 range 6.277–11.52median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.868	-	DFT · OptB88vdW
↳	5.261	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000510	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00180	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-79.41	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	207.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	21.41	%	DFT · TBmBJ

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)	-0.6745	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

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.

KLi2As

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental