Isolate the leakage contaminated area and restrict access. It is recommended that emergency treatment personnel wear dust masks (full masks) and gas suits. Avoid raising dust, sweep it carefully, put it in a bag and transfer it to a safe place. If there is a large amount of leakage, cover it with plastic cloth and canvas. Collect and recycle or transport to the waste treatment site for disposal. In case of leakage, it shall be disposed of by safe burial method after neutralization.
It is used in the production of insurance powder, sulfamethazine, metamizole, caprolactam, etc., as well as the purification of chloroform, phenylpropanesulfone and benzaldehyde. The photographic industry is used as an ingredient for fixers. Perfume industry is used to produce vanillin. It is used as preservative in brewing industry, rubber coagulant and dechlorination agent after cotton bleaching. Organic intermediates, dyes, tanning as reductant, electroplating industry, oilfield wastewater treatment and mineral processing agent for mines. It is used in printing and dyeing, organic synthesis, printing, tanning, pharmaceutical and other departments; It is used as preservative, bleach and loosening agent in food processing. (printing and dyeing, photography, etc.), used as bleaching agent, mordant, reductant, rubber coagulant, and also used in organic synthetic pharmaceuticals and spices.
Regulations Information regulations on the safety management of hazardous chemicals (issued by the State Council on February 17, 1987), rules for the implementation of the regulations on the safety management of hazardous chemicals (HLF  No. 677), regulations on the safe use of chemicals in the workplace ( LBF No. 423), and other regulations have made corresponding provisions for the safe use, production, storage, transportation, loading and unloading of hazardous chemicals.