Sodium Hydrosulfite is used for water treatment, gas purification, cleaning, and stripping. Sodium Hydrosulfite can also be used in industrial processes as a sulfonating agent or a sodium ion source. In addition to the textile industry, Sodium Hydrosulfite is used in industries concerned with leather, foods, polymers, photography, and many others. Its wide use is attributable to its low toxicity LD 50 at 5 gm/kg.Details Chemical Name : Sodium Hydrosulfite Synonyms : Sodium Dithionite, Sodium Hydrosulphite Molecular Formula : Na2S2O4 Molecular Weight : 174.09Reducing agent