Cu2As4S3Cl2

metal

· JVASP-29495· Cu2As4S3Cl2

Cu2As4S3Cl2 is a rare mixed-valence copper arsenosulfide chloride compound that exists primarily in research and specialized materials contexts rather than conventional engineering applications. This material belongs to the family of complex metal chalcogenides and represents an experimental composition combining copper, arsenic, sulfur, and chlorine—a combination with limited industrial precedent. The compound's potential lies in semiconductor research, advanced materials chemistry, and possibly specialized optical or electronic applications, though practical engineering use cases remain underdeveloped and would require validation of stability, toxicity, and manufacturing feasibility.

experimental semiconductor researchadvanced materials chemistryspecialty optical compoundsarsenic-based materials development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.929	kg/m³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	1.443	eV	—
Seebeck Coefficient(S)	-258.5	µV/K	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01490	eV/atom	—
Formation Energy(ΔHf)	-0.2958	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

Quality & Standards

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.

Cu2As4S3Cl2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control

Quality & Standards