Cupric acetate

Cupric Acetate is a chemical compound with the formula Cu(C2H3O2)2. It is commonly referred to as copper(II) acetate, and is a dark green crystalline solid. It is used in a variety of applications, including as a fungicide, a pigment, and in organic synthesis.

History

Cupric acetate was first prepared in the 19th century by the reaction of acetic acid with copper(II) oxide. It was used in the production of Paris Green, a highly toxic insecticide and rodenticide that was popular in the 19th and early 20th centuries.

Preparation

Cupric acetate can be prepared by the reaction of acetic acid with copper(II) oxide or copper(II) hydroxide. The reaction produces a blue-green solution, which can be evaporated to yield the cupric acetate crystals.

Properties

Cupric acetate is a dark green crystalline solid. It is soluble in water and alcohol, and slightly soluble in ether and glycerol. It decomposes upon heating, producing acetic acid and copper(II) oxide.

Uses

Cupric acetate is used in a variety of applications. It is used as a fungicide, particularly in the treatment of downy mildew in vines. It is also used as a pigment in ceramics and glass, and in the synthesis of other copper compounds. In organic synthesis, it is used as a catalyst and as a mordant in dyeing.

Safety

Cupric acetate is harmful if swallowed or inhaled, and can cause irritation to the skin and eyes. It is also harmful to aquatic life.

See also

• Copper(II) sulfate
• Copper(II) chloride
• Copper(II) nitrate

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