Appearance:White crystalline powder
Package:25 kg plastic bags
Usage:In industry, it is mainly used for making cellulose sulfite ester, sodium thiosulfate, organic chemicals, bleached fabrics, etc., and also used as reducing agent, preservative, dechlorination agent, etc.  Printing and dyeing industry as deoxidizer and bleaching agent.  
The food industry used as a bleaching agent, preservative, loosening agent, antioxidant, dehydrated vegetables used as a reducing agent;