Mercurous sulfate ,also named as Mercury(II) sulfate, is an inorganic compound with the chemical formula HgSO4 that is a colorless or white crystalline powder. Mercurous sulfate is a heavy metal salt that has certain toxicity and therefore requires special care when using and handling.

In terms of chemical properties, mercurous sulfate is a strong acid and weak alkali salt, which can ionize mercury ions and sulfate ions in water. Due to the hydrolysis of mercury ions, the aqueous solution of mercurous sulfate is acidic. The solubility of mercurous sulfate increases with increasing temperature.

1. Analytical chemistry: Mercurous sulphate is used in precipitation titration as a precipitant to determine the concentration of certain anions, such as iodine ions.

2. Pharmaceutical industry: In pharmaceutical processes, mercurous sulfate has been used as a catalyst or reaction intermediate.

3. Pesticides and insecticides: Mercurous sulphate is used as an ingredient in some pesticides and insecticides for pest control.

4. Electroplating: During the electroplating process, mercurous sulfate is used as part of the electrolyte solution for electroplating the mercury layer.

5. Rubber industry: Mercurous sulphate is used as an accelerator in the rubber vulcanization process.

6. Tannery industry: Mercurous sulphate is used as a tanning agent for leather processing.

7. Dyes and pigments: Mercurous sulfate is used in the manufacturing process of certain dyes and pigments.