Potassium dicyanoargentate
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| Names | |||
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| IUPAC name
Potassium dicyanoargentate(I)
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| Other names
Potassium argentocyanide
Potassium silver cyanide | |||
| Identifiers | |||
3D model (JSmol)
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| ChEMBL | |||
| ChemSpider | |||
| ECHA InfoCard | 100.007.316 | ||
| EC Number |
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PubChem CID
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| UNII | |||
| UN number | 1588 | ||
CompTox Dashboard (EPA)
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| Properties | |||
| KAg(CN)2 | |||
| Molar mass | 199.001 g/mol | ||
| Appearance | White crystals | ||
| Density | 2.36 g/cm3 | ||
| Soluble | |||
| Solubility | Insoluble in acids | ||
Refractive index (nD)
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1.625 | ||
| Hazards | |||
| Safety data sheet (SDS) | CAMEO Chemicals MSDS | ||
| Related compounds | |||
Other anions
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Potassium dicyanoaurate | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Potassium dicyanoargentate is an inorganic compound with the formula KAg(CN)2. A white solid, it is the K+ salt of the linear coordination complex [Ag(CN)2]−. It forms upon treatment of virtually any silver salt with two equivalents of potassium cyanide.
Uses and reactions
[edit]KAg(CN)2 is significant adventitious product of gold mining using cyanide as an extractant.[1]
It can be used in silver plating, as a bactericide, and in the manufacture of antiseptics.[2]
It forms a variety of coordination polymers, a property that exploits the bridging tendency of the cyanide ligand.[3]
References
[edit]- ^ Liu, Wenqi; Jones, Leighton O.; Wu, Huang; Stern, Charlotte L.; Sponenburg, Rebecca A.; Schatz, George C.; Stoddart, J. Fraser (2021). "Supramolecular Gold Stripping from Activated Carbon Using α-Cyclodextrin". Journal of the American Chemical Society. 143 (4): 1984–1992. doi:10.1021/jacs.0c11769. PMID 33378203. S2CID 229930811.
- ^ "Potassium Silver Cyanide". CAMEO Chemicals. NOAA.
- ^ Shorrock, Carolyn J.; Xue, Bao-Yu; Kim, Peter B.; Batchelor, Raymond J.; Patrick, Brian O.; Leznoff, Daniel B. (2002). "Heterobimetallic Coordination Polymers Incorporating [M(CN)2]- (M = Cu, Ag) and [Ag2(CN)3]- Units: Increasing Structural Dimensionality via M−M' and M···NC Interactions". Inorganic Chemistry. 41 (25): 6743–6753. doi:10.1021/ic025850p. PMID 12470070.
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