As₈S₉ is an arsenic sulfide ceramic compound belonging to the chalcogenide ceramic family, characterized by strong covalent bonding between arsenic and sulfur atoms. This material is primarily investigated in research contexts for infrared optical applications, particularly in thermal imaging systems and spectroscopy windows where transparency in the mid-to-long wavelength IR region is valuable. As₈S₉ offers a combination of optical properties and chemical stability that distinguishes it from more common oxides, though its practical deployment remains limited compared to established alternatives like zinc selenide or calcium fluoride.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 14.34 | GPa | — | ||
Poisson's Ratio(ν) | 0.2800 | - | — | ||
Shear Modulus(G) | 8.450 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.414 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.504 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -189.2 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000100 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.1534 | eV/atom | — |