Used as a reducing agent in chemical synthesis, particularly in textile processing and dyeing industries to assist in the reduction of dyes. Commonly applied in water treatment to remove excess chlorine due to its ability to reduce hypochlorite and chloramines. Also utilized in the food industry as a preservative and antioxidant, helping to prevent discoloration and spoilage in dried fruits and wines. Plays a role in photography as a component in some developing solutions to stabilize the process and prevent oxidation.