Potassium tetrachloridocuprate(II)
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Potassium tetrachloridocuprate(II) is a salt with chemical formula K
2CuCl
4, also written as (K+
)2·[CuCl
4]2−.
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Potassium tetrachloridocuprate(II) | |
Other names
Potassium tetrachlorocuprate, potassium copper(II) tetrachloride, dipotassium cupric chloride, mitscherlichite (dihydrate mineral) | |
Identifiers | |
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PubChem CID |
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Properties | |
K2CuCl4 (anhydrous) K2CuCl4·2H2O (dihydrate) | |
Molar mass | 319.585 g/mol (dihydrate) |
Appearance | greenish blue crystals (dihydrate) |
Density | 2.416 g/cm3 at 25 °C (dihydrate)[1] |
Structure | |
(dihydrate:) Tetragonal.Point Group: 4/m 2/m 2/m (probable). Crystals, short prismatic along [001], or pyramidal {011}, minute; in stalactitic growths[2] | |
Hazards | |
Flash point | Non-flammable |
Related compounds | |
Other cations |
Cesium tetrachloridocuprate(II) ammonium tetrachloridocuprate(II) rubidium tetrachloridocuprate(II) iron(II) tetrachloridocuprate(II) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The compound is often found as the dihydrate K
2CuCl
4·2H
2O, which is a brilliant greenish blue crystalline solid.[1] This form also occurs naturally as the rare mineral mitscherlichite.[1][2]
The compound is also called potassium tetrachlorocuprate(II), dipotassium tetrachlorocuprate, potassium copper(II) tetrachloride, potassium cupric chloride and other similar names.