Nomenclature
CAS number: 12002-03-8
(Acetato)trimetaarsenitodicopper; 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.
C
4H
6As
6Cu
4O
16; mol wt 1013.79.
C 4.74%, H 0.60%, As 44.34%, Cu 25.07%, O 25.25%.
Cu(C
2H
3O
2)
2.3Cu(AsO
2)
2.
Description and 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).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.