Title: Cupric Sulfate
CAS Registry Number: 7758-98-7
CAS Name: Sulfuric acid copper (2+) salt (1:1)
Synonyms: copper(II) sulfate
Molecular Formula: CuO4S
Molecular Weight: 159.61
Percent Composition: Cu 39.81%, O 40.10%, S 20.09%
Line Formula: CuSO4
Literature References: Occurs in nature as the mineral
hydrocyanite. Commercial preparation of pentahydrate:
Faith, Keyes & Clark's Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience, New York, 4th ed., 1975) pp 280-284; other prepns:
Gmelins, Copper (8th ed.)
60B, 491-560 (1958). Toxicity: Smyth
et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969).
Properties: Grayish-white to greenish-white rhombic crystals or amorphous powder. On heating dec above 560°. d 3.6. Hygroscopic. Sol in water. Practically insol in alcohol.
Keep tightly closed.
Density: d 3.6
Derivative Type: Monohydrate
CAS Registry Number: 10257-54-2
Synonyms: Dried cupric sulfate
Properties: Hygroscopic, almost white powder. Sol in water. Practically insol in alcohol.
Keep tightly closed.
Derivative Type: Pentahydrate
CAS Registry Number: 7758-99-8
Synonyms: Bluestone; blue vitriol; Roman vitriol; Salzburg vitriol
Properties: Occurs in nature as the mineral
chalcanthite. Large, blue or ultramarine, triclinic crystals or blue granules or light-blue powder. Slowly efflorescent in air. Loses 2H2O at 30°, 2 more H2O at 110°; becomes anhydr by 250°. d415.6 2.286. Very sol in water; sol in methanol, glycerol; slightly sol in ethanol. pH of 0.2 molar aq soln 4.0. LD50 orally in rats: 960 mg/kg (Smyth).
Density: d415.6 2.286
Toxicity data: LD50 orally in rats: 960 mg/kg (Smyth)
CAUTION: A strong irritant.
See also Copper.
Use: Anhydr salt for detecting and removing trace amounts of water from alcohols and other organic compds; as fungicide. Pentahydrate as agricultural fungicide, algicide, bactericide, herbicide; food and fertilizer additive; in insecticide mixtures; in manuf of other Cu salts; as mordant in textile dyeing; in prepn of azo dyes; in preserving hides; in tanning leather; in preserving wood; in electroplating solns; as battery electrolyte; in laundry and metal-marking inks; in petroleum refining; as flotation agent; pigment in paints, varnishes and other materials; in mordant baths for intensifying photographic negatives; in pyrotechnic compositions; in water-resistant adhesives for wood; in metal coloring and tinting baths; in antirusting compositions for radiator and heating systems; as reagent toner in photography and photoengraving; etc.
Therap-Cat: Antidote to phosphorus; antifungal (topical); copper supplement.
Therap-Cat-Vet: Nutritional factor. Used in copper deficiency of ruminants. Has also been used as an anthelmintic, emetic, fungicide.
Keywords: Antiseptic/Disinfectant; Replenishers/Supplements; Copper.
