Useful as a reducing agent; it reduces vat dyes, ketones to alcohols and hydrocarbons and conjugated unsaturated acids to the corresponding saturated acids. It is an excellent antioxidant in the stabilization of percholorethylene. It is mainly used in dyeing and paper making industry stead of using sodium hydrosulphite, organic synthesis in synthetic fibre industry, additive of polymerzation, stabilizer for polythene sensitizer of photographical emulsion