It is used for both film and photographic paper processing; the sodium thiosulfate is known as a photographic fixer, and is often referred to as ‘hypo’, from the original chemical name, hyposulphite of soda.

Applications

➡️  As Bleaching & Oxidising agent.
➡️  For Effluent Treatment.
➡️   As Disinfectant.
➡️   For Water treatment.
➡️   In manufacture of various medicines
➡️   sugar industries to inhibit bacterial growth.