Arsenic disulfide (As₂S₂), also known as arsenic, is an inorganic compound composed of arsenic and sulfur. It is an orange-red powder with a peculiar garlic odor.

Here are some of the main uses of arsenic disulfide:

1. Agricultural uses: In agriculture, arsenic disulfide has been used as an insecticide and rodenticide.

2. Glass and ceramic industry: Arsenic disulfide is used as a decolorizing agent and clarifier in the glass and ceramic industry, helping to improve the transparency and quality of products.

3. Wood preservatives: Among wood preservatives, arsenic disulfide has been used to protect wood from fungi and insects.

4. Leather industry: In the leather industry, arsenic disulfide was used as a preservative and pesticide to protect leather products from damage.

5. Metal refining: In the metal refining process, arsenic disulfide has been used as an additive to help remove impurities and improve the purity of the metal.