... yellow crystalline powder Main uses: Bleach agent(e. G. Candies, cake, bamboo shoots, etc); Loose agent(e. G. Bread, cracker etc); Antiseptic ... and germicide(e. G. Fruit juice, tinned food, brews ... the cereals food is defended storage etc); Inhibitor and freshen agent(e. G. Day lily, seafood, fruit and vegetable etc) ...