COPPER(II) ARSENATE

'Copper arsenate' (Cu₃(AsO₄)₂.4H₂O, or Cu₅H₂(AsO₄)₄.2H₂O), also called 'copper orthoarsenate' or 'tricopper arsenate' or 'tricopper orthoarsenate', is an insecticide used in agriculture. It is also used as a herbicide, fungicide, and a rodenticide. It is a blue or bluish-green powder insoluble in water and alcohol and soluble in aqueous ammonium and dilute acids. Its CAS number is or .
'Copper arsenate hydroxide' or 'basic copper arsenate' (Cu(OH)AsO₄) is a basic variant with CAS number . It is found naturally as the mineral olivenite. It is used as an insecticide, fungicide, and miticide. Its use is banned in Thailand since 2001.[1]
Copper arsenate is also used as a poison in slug baits.
Copper arsenate can also be a misnomer for copper arsenite, especially when meant as a pigment.

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See also

External links

See also

★ Lead arsenate

★ Calcium arsenate

★ Paris Green (copper arsenate-acetate)

★ Chromated copper arsenate

★ Scheele's Green (copper arsenite)

External links

★ National Pollutant Inventory - Copper and compounds fact sheet