Nomenclature
CAS number: 20427-59-2
Copper hydrate; hydrated cupric oxide.
CuH
2O
2; mol wt 97.56.
Cu 65.14%, H 2.07%, O 32.80%.
Cu(OH)
2.
Description and references
Commercial prepn: Furness, US 1800828 (1931 to Cellosilk); idem, US RE 24324 (1957 to Copper Research); Rowe, US 2536096 (1951 to Mountain Copper); laboratory prepn: Weiser et al., J. Am. Chem. Soc. 64, 503 (1942);
Gauthier, Bull. Soc. Chim. Fr. 1960, 353.
Properties
Blue to blue-green gel or light blue cryst powder.
Stability is dependent on the method of prepn; may dec to black CuO
on standing a few days or on heating. d 3.37. Practically insol in water. Sol in
concd alkali when freshly pptd; sol in acids, NH4OH.Use
In manuf of rayon, battery electrodes, other Cu
salts; as mordant in dyeing; as pigment; in fungicides, insecticides;
as feed additive; in treating and staining paper; in prepn of Schweitzer's
reagent; in catalysts.