TDO is a new reducing agent for sodium bisulfite exchange. Widely used in textile, paper and other industries. This product is also used in leather processing industry, paper, pulp and paperboard industry, photographic industry, bleaching reducing agent and so on. This product is also a component of decolorizing agent. In the polymer material industry, it is used as a catalyst and stabilizer for resin production, but also used in the organic synthesis of sensitized materials, pharmaceutical, pharmaceutical, fragrance materials in fine chemicals, and can also be used for the recovery and separation of heavy bls.