Sodium metabisulphate for  Industrial Use

Formula: Na2S2O5

Molecular Weight: 190.10

Appearance: white or light yellow crystalline powder.

HG/T 2826-1997

Item High-grade First-grade
Content (as Na2S2O5)% 96.0 % min. 94.0 % min.
Iron (as Fe)  0.005 % max. 0.010% max.
water-insoluble   0.05% max. 0.05% max.
Arsenic (as As)   0.0001% max.  



Item Index
Content(SO2 65.0 % min.
Iron (Fe)  0.005% max.
insoluble in water  0.05% max.
PH Value 4.0-4.6


Main uses:

    Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleaching agent of paper pulp, bamboo and timber bleaching agent of stapk; Mineral-dressing of nonferrous metals; Treating agent of waste water; Rubber solidifying agent.

Packing: In 25, 50, 1000kg PVC plastic film with a polypropylene bag.







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