K5As2Au — Properties & Data | MatWorld

K5As2Au

metal

· JVASP-10267· K5As2Au

K5As2Au is an intermetallic compound containing potassium, arsenic, and gold—a rare ternary phase that does not appear in common engineering use. This material is a research-level compound rather than an industrial standard, likely of interest to materials scientists studying unusual metal combinations or specialized electrochemistry applications. Limited practical deployment exists; the material's relevance would be in exploring novel properties of heavy metal-noble metal systems or investigating behavior in niche semiconductor or catalytic contexts.

experimental researchintermetallic phase studiescatalytic researchsemiconductor substrate investigationhigh-purity synthesis contexts

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	2,836.9	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4400	-	DFT · OptB88vdW
Shear Modulus(G)	1,097.9	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1197	lb/in³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.4860	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	7.649	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.2233	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.9600	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000433	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000920	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-69.46	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	378.7	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)	-0.5323	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

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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.

K5As2Au

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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