Potassium selenocyanate
Appearance
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3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.020.292 |
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
CNKSe | |
Molar mass | 144.08 |
Appearance | colorless or white solid |
Density | 2.35 g/cm3 |
high | |
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 selenocyanate is the inorganic compound with the formula KSeCN. It is a hygroscopic white solid that is soluble in water, decomposing in air to red selenium and potassium cyanide. The compound has been characterized by X-ray crystallography, which confirms that it is a salt. The C-N and C-Se distances are 1.12 and 1.83, respectively, consistent with triple and single bonds. [1]
It serves as a source of Se0, e.g., in its reaction with triphenylphosphine to give triphenylphosphine selenide.[2]
References
- ^ Swank, Duane D.; Willett, Roger D. (1965). "The Crystal Structure of Potassium Selenocyanate". Inorganic Chemistry. 4: 499–501. doi:10.1021/ic50026a013.
- ^ Nicpon, Philip; Meek, Devon W. (1967). "Triphenylphosphine Selenide". Inorganic Syntheses. 10: 157–159. doi:10.1002/9780470132418.ch23.