Sodium meta bi sulphite is an inorganic compound. It is a crystalline powder that is white to yellow in color.It is soluble in water.
1) In Pharma Industry
2) In food industry -: used as a bleaching agent, preservative agent , antioxidant
3) In leather industry: makes leather soft, well developed, tough water proof,anti-break, wear ability
4) In dye industry: used as dechlorination agent and cotton boiling off agent for bleached cotton.