| Chemical nature | Insoluble in water and acetic acid. Soluble in concentrated hydrochloric acid, alcohol, ammonium sulfide (NH4HS), potassium sulfide solution. |
| Application | 1. Mainly used in the production of safety matches, firecrackers, munitions and as hardeners or pigments in the rubber industry. |
| 2. Mainly used to make matches and fireworks, various antimony salts and colored glass. Chemicalbook used in rubber industry as vulcanizing agent and military use etc. |
| 3. Used as analytical reagent and rubber vulcanizing agent, also used in the preparation of fireworks and explosives. |
| 4. Rubber vulcanizing agent. Manufacture of fireworks, glass, explosives, paints and pigments. |