K2AsAuS4 — Properties & Data | MatWorld

K2AsAuS4

metal

· JVASP-62325· K2AsAuS4

K2AsAuS4 is an intermetallic compound containing potassium, arsenic, gold, and sulfur—a rare quaternary phase that does not correspond to a conventional alloy system or established material class. This is a research-phase compound with limited documented industrial applications; it falls within the family of complex sulfide intermetallics and mixed-valence systems that are primarily of interest in materials science for studying crystal structures, electronic properties, and phase chemistry rather than for mainstream engineering use.

materials research and phase studiessolid-state chemistrycrystallography and structure analysiselectronic materials screening

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1341	lb/in³	DFT · OptB88vdW

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

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.7260	eV	DFT · OptB88vdW
↳	1.730	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.182	-	DFT · OptB88vdW
↳	4.506	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	28.75	%	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)	-0.7080	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.

K2AsAuS4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control