Description
A light yellowish-green toxic powder known as the pigment Scheele's green. . Copper arsenite was discovered in Sweden 1775 by C.W. Scheele, a German chemist, but he did not publish the recipe until 1778. Scheele's green was never widely used as a paint pigment because it was toxic and discolored in the presence of acid or sulfur fumes. Currently, it is used as a rodenticide, insecticide, fungicide, and wood preservative.
Synonyms and Related Terms
Scheele's green; cupric arsenite; Pigment Green 22; CI 77412; mineral green; ash green; cupric acid orthoarsenite; copper orthoarsenite
| Cu(AsO2)2 |
| 10290-12-7 |
| mol. wt. = 187.5 |
| 1.55 - 1.75 |
Other Properties
Soluble in mineral acids, ethanol, ammonium hydroxide. Insoluble in water. Decomposes in alkalis. Darkens in the presence of sulfur or lead compounds.
Hazards and Safety
Extremely toxic by ingestion, inhalation and skin absorption. Human carcinogen.
May produce toxic arsenic fumes when decomposed by fungi.
International Chemical Safety Card
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Last updated on: 3/8/2008 7:34:32 PM
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