As2S

ceramic
· JVASP-101749· As2S

As₂S₃ is an inorganic ceramic compound belonging to the chalcogenide glass family, combining arsenic and sulfur in a stable stoichiometric form. This material is primarily used in infrared (IR) optics and photonics applications, where its transparency in the mid- to long-wave infrared spectrum makes it valuable for thermal imaging systems, spectroscopy, and sensing devices. As₂S₃ glass is also investigated for photonic applications including all-optical switching and fiber optics, offering advantages over silica-based systems in specific wavelength ranges, though handling and disposal require careful attention due to arsenic content.

infrared optics and windowsthermal imaging systemsspectroscopic instrumentationfiber optics and photonicsinfrared detectors and sensorsresearch and development (IR materials)

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
ksi
Poisson's Ratio(ν)
-
Shear Modulus(G)
ksi
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
eV
Magnetic Moment(μB)
µB
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
eV/atom
Formation Energy(ΔHf)
eV/atom
Verified Unverified Low confidence (<80%) Link to source

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.
As2S — Properties & Data | MatWorld