Title: Cupric Acetoarsenite
CAS Registry Number: 12002-03-8
CAS Name: (Acetato)trimetaarsenitodicopper
Additional Names: Paris green; copper acetate arsenite; emerald green; French green; imperial green; mineral green; Mitis green; parrot green; Schweinfurt green; Vienna green; C.I. Pigment Green 21; C.I. 77410
Molecular Formula: C4H6As6Cu4O16
Molecular Weight: 1013.79
Percent Composition: C 4.74%, H 0.60%, As 44.34%, Cu 25.07%, O 25.25%
Line Formula: Cu(C2H3O2)2.3Cu(AsO2)2
Literature References: Usually contains some water. Prepn: Serciron, US 2159864 (1939); Krefft, US 2268123 (1944 to Chemical Marketing); Glemser, Sauer in Handbook of Preparative Inorganic Chemistry vol. 2, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1965) p 1027. See also Colour Index vol. 4 (3rd ed., 1971) p 4667. Toxicity study: T. B. Gaines, Toxicol. Appl. Pharmacol. 14, 515 (1969).
Properties: Emerald green, crystalline powder. Poisonous! Stable to air, light. Practically insol in water. Dec on prolonged heating in water. Unstable in acids, bases, and toward H2S. LD50 orally in female rats: 100 mg/kg (Gaines).
Toxicity data: LD50 orally in female rats: 100 mg/kg (Gaines)
CAUTION: Toxicity primarily result of arsenic content. Gastric disturbance, tremors or muscular cramps, and peripheral neuritis. Local effects on the skin, mucous membrances and conjunctiva.
Use: Insecticide; wood preservative; as pigment, particularly for ships and submarines. |