Potassium dicyanoaurate
Chemical compound / From Wikipedia, the free encyclopedia
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.[3]
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Potassium dicyanoaurate(I) | |
Other names | |
Identifiers | |
3D model (JSmol) |
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6235525 | |
ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.034.303 |
EC Number |
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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[1] |
Density | 3.45 g/cm3[1] |
Boiling point | decomposes |
140 g/L[1] | |
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).
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