Sodium metabisulfite

Product Identification: CAS No.: 7681-57-4 Molecular Formula: Na2s2O5 Specification: 1、CONTENT (NA2S2O5, %):96.5 MIN 2、FE (%)：0.003 MAX 3、HEAVY METALS (AS PB) (%)：0.0005 MAX 4、ARSENIC ( AS AS) (%)：0.0001 MAX 5、INSOLUBLE SUBSTANCE IN WATER (%)：0.05 MAX Application: 1.Industry Use: dyeing mordant, dechlorinating agent for washed fabric, medical deoxidizer and sulfonating agent, decolorant for bamboo, wood and paper fiber, mineral separation agent for nonferrous metals, disposing agent of waste water, rubber coagulator. 2.Food Use: Bleaching agent (for sugar, pastry, dried slices of tender bamboo shoots, etc.), loosening agent (for bread, biscuit, etc. ), corrosion protection antiseptic (fruit juice, can, etc. ), antioxidant(for lily flower, sea food, fruit, vegetable, etc. )
1.Industry Use: dyeing mordant, dechlorinating agent for washed fabric, medical deoxidizer and sulfonating agent, decolorant for bamboo, wood and paper fiber, mineral separation agent for nonferrous metals, disposing agent of waste water, rubber coagulato