Uses of Copper Sulphate

Uses of Copper Sulphate:

• For make action of alkalies:

With alkalies, a pale blue precipitate of copper hydroxide is formed.

CuSO₄ + 2NaOH → Cu(OH)₂ + Na₂SO₄ (Pale blue precipitate)

• Action with H₂S

With H₂S it gives a black precipitate of copper sulphide.

CuSO₄ + H₂S → CuS + H₂SO₄ (Black ppt)

Other Uses:

1. It is used as a germicide and insecticide in agriculture.
2. A mixture of copper sulphate and lime, commonly known as Bordeaux mixture, is used as fungicide.
3. It is used in electroplating, calicoprinting and in electrical batteries.