Potassium dicyanoaurate
| Names | |
|---|---|
| IUPAC name
Potassium dicyanoaurate(I) | |
| Other names
potassium cyanoaurate potassium gold cyanide potassium gold dicyanide | |
| Identifiers | |
3D model (JSmol) |
|
| 6235525 | |
| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.034.303 |
| EC Number |
|
| 37363 | |
PubChem CID |
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| UNII | |
| UN number | 1588 |
CompTox Dashboard (EPA) |
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| Properties | |
| KAu(CN)2 | |
| Molar mass | 288.101 g/mol |
| Appearance | white crystal |
| Density | 3.45 g/cm3 |
| Boiling point | decomposes |
| 140 g/L | |
| Structure | |
| Rhombohedral, hR54, No. 148 | |
| R3 | |
a = 0.728 nm, b = 0.728 nm, c = 2.636 nm | |
Lattice volume (V) |
1.2099 nm3 |
Formula units (Z) |
9 |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards |
toxic |
| GHS labelling: | |
| Warning | |
| H290, H300, H310, H315, H317, H318, H330, H410 | |
| P260, P264, P273, P280, P284, P301+P310 | |
| Related compounds | |
Other anions |
Potassium argentocyanide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
Potassium dicyanoaurate (or potassium gold cyanide) is an inorganic compound with formula K[Au(CN)2]. It is a colorless to white solid that is soluble in water and slightly soluble in alcohol. The salt itself is often not isolated, but solutions of the dicyanoaurate ion ([Au(CN)2]−) are generated on a large scale in the extraction of gold from its ores.