| Melting point |
decomposes at 240℃ [CRC10] |
| Density |
11.000 |
| solubility |
insoluble in H2O, acid solutions; soluble in aquaregia |
| form |
brown-black cubic crystals |
| color |
brown-black cubic crystals, crystalline;
unstable |
| Water Solubility |
insoluble H2O, dilute single acids; soluble aqua regia, alkali cyanide solutions [MER06] [KIR78] |
| Crystal Structure |
Cu2O type |
| crystal system |
Cube |
| Space group |
Pn3m |
| Lattice constant |
| a/nm | b/nm | c/nm | α/o | β/o | γ/o | V/nm3 | | 0.502 | 0.502 | 0.502 | 90 | 90 | 90 | 0.1265 |
|
| EPA Substance Registry System |
Gold sulfide (Au2S) (1303-60-2) |
