Names | |
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IUPAC name
Copper(I, II) sulfite dihydrate
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Other names
Chevreul's salt
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Identifiers | |
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3D model (JSmol)
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ChemSpider | |
PubChem CID
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UNII |
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CompTox Dashboard (EPA)
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Properties | |
Cu3H4O8S2 | |
Molar mass | 386.78 g·mol−1 |
Appearance | brick red powder |
Density | 3.57 |
Solubility | aqueous ammonia |
Thermal conductivity | 0.1 kWcm−1K−1 |
Structure[3] | |
monoclinic | |
P21/n[2] | |
a = 5.5671 Å, b = 7.7875 Å, c = c = 8.3635 Å α = 90°, β = 91.279o°, γ = 90°
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Lattice volume (V)
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362.5 Å3 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chevreul's salt (copper(I,II) sulfite dihydrate, Cu2SO3•CuSO3•2H2O or Cu3(SO3)2•2H2O), is a copper salt which was prepared for the first time by a French chemist Michel Eugène Chevreul in 1812. Its unusual property is that it contains copper in both of its common oxidation states, making it a mixed-valence complex. It is insoluble in water and stable in air.[4] What was known as Rogojski's salt is a mixture of Chevreul's salt and metallic copper.[5]
dasent
was invoked but never defined (see the help page).