Copper acetate

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A dark green crystalline powder. Copper acetate is prepared by the reaction of acid acetic acid with oxide red copper oxide. The green is unstable and can leave a black residue upon decomposition. Copper acetate is also used as a pesticide, fungicide, catalyst, textile dye and as a pigment for paints, inks, and ceramics.

See also acetate, basic copper acetate, basic.

Synonyms and Related Terms

cupric acetate; crystals of Venus, crystallized verdigris; verdet

Chemical structure

Copper acetate.jpg

Other Properties

Soluble in water, ethanol. Slightly soluble in ether, glycerol.

Composition Cu(C2H3O2)2-H2O
CAS 142-71-2
Melting Point 115
Density 1.882
Molecular Weight mol. wt. = 181.64
Boiling Point 240 (dec)

Hazards and Safety

Toxic by ingestion. Contact causes irritation and burns.

Mallinckrodt Baker: MSDS


  • G.S.Brady, G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p.231
  • Ralph Mayer, Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • Richard S. Lewis, Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 2690

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