As₄S₅ is an arsenic sulfide ceramic compound belonging to the chalcogenide ceramic family, materials composed of elements from groups 16-17 paired with metalloids or metals. This material exists primarily in research and specialized optical applications rather than mainstream industrial use; arsenic sulfide ceramics are investigated for infrared optics, photonic devices, and specialized glass formulations where their unique optical and thermal properties offer advantages over conventional oxides. Engineers would consider As₄S₅ for niche applications requiring high refractive index, infrared transparency, or photosensitive behavior, though toxicity concerns and limited commercial availability make it unsuitable for general-purpose engineering.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 15.20 | GPa | — | ||
Poisson's Ratio(ν) | 0.2700 | - | — | ||
Shear Modulus(G) | 8.960 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.340 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.591 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 5.450 | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -223.5 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.1531 | eV/atom | — |