The application of sodium metabisulfite.

1.Used in medicine when producing chloroform,solasulfone and methnylal.
2.Used as coagulant in rubber industry.
3.Used as dechlorided agent or assistants in printing and dyeing industry.
4.Used to improve leather properties inleather industry.
5.Used as developing agent inphotosensitivity industry.
6.Used when producing hydroxyl geranial,hydrochloric hydroxylamine inchemical industry.
7.Used as bleaching agent, antiseptics antioxidant, ect in food industry.