Mercury sulfide
| Names | |
|---|---|
| IUPAC name
Mercury sulfide | |
| Other names | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.014.270 |
| EC Number |
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PubChem CID |
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| UNII | |
| UN number | 2025 |
CompTox Dashboard (EPA) |
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| Properties | |
| HgS | |
| Molar mass | 232.66 g/mol |
| Density | 8.10 g/cm3 |
| Melting point | 580 °C (1,076 °F; 853 K) decomposes |
| insoluble | |
| Band gap | 2.1 eV (direct, α-HgS) |
| −55.4·10−6 cm3/mol | |
Refractive index (nD) |
w=2.905, e=3.256, bire=0.3510 (α-HgS) |
| Thermochemistry | |
Std molar entropy (S⦵298) |
78 J·mol−1·K−1 |
Std enthalpy of formation (ΔfH⦵298) |
−58 kJ·mol−1 |
| Hazards | |
| GHS labelling: | |
| Danger | |
| H300, H310, H317, H330, H373, H410 | |
| P261, P272, P280, P302+P352, P321, P333+P313, P363, P501 | |
| NFPA 704 (fire diamond) | |
| Flash point | Non-flammable |
| Safety data sheet (SDS) | Fisher Scientific |
| Related compounds | |
Other anions |
Mercury oxide mercury selenide mercury telluride |
Other cations |
Zinc sulfide cadmium sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Mercury sulfide, or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur. It is represented by the chemical formula HgS. It is virtually insoluble in water.