Nomenclature
CAS number: 13982-53-1
Cu
2O
3S; mol wt 207.16.
Cu 61.35%, O 23.17%, S 15.48%.
Cu
2SO
3.
Description and references
Prepn and review: Dasent, Morrison, J. Inorg. Nucl. Chem. 26, 1122
(1964).
Derivative
Hemihydrate.
Nomenclature
Etard's salt. Properties
White to pale-yellow hexagonal crystals. Slightly
sol in water; sol in HCl, NH4OH, alkali solns. Practically
insol in ether, alcohol.Derivative
Cupro-cupric sulfate.
Nomenclature
Chevreul's salt. Cu
3O
6S
2; mol wt 350.76.
Cu 54.35%, O 27.37%, S 18.28%.
Properties
Dihydrate, red microcryst powder or prismatic
crystals. Practically insol in water, alcohol. Sol in NH4OH, HCl.Derivative
Rogojski's salt.
Description and references
Formerly considered to be Cu2SO3.H2O; shown to be an equimolar mixture of Chevreul's
salt and metallic copper (Dasent, Morrison, loc. cit.).
Properties
Brick-red solid.Use
As fungicide for grape vines; in dyeing polyacrylic
fibers; polymerization catalyst. Chevreul's salt is a selective molluscicide.