Sodium Metabisulfite 97% industrial/food grade CAS No 7681-57-4 Na2s2o5
Packaging & Delivery
Packaging Details:external polypropylene woven bag, polyethylene plastic bag inner
25kg/bag,50kg/bag,1000kg/bag
Name:
Sodium metabisulfit
Appearance:
White Free Flowing Fine Crystal or Powder
Specification:
Industrial grade
1) Purity (calculated with Na2S2O5): 97%
2) Iron (Fe): 0.005%
3) SO2: 65%
4) PH value: 4.0-4.6
5)Water insoluble matter: 0.05%
Food grade
1) Purity (calculated with Na2S2O5): 97%
2) Iron (Fe): 0.0005%
3) Arsenic (As): 0.0002%
4) pH value: 4.0-4.6
5) Water insoluble matter: 0.05%
6) Heavy metal (Cal. in Pb): 0.002%
Usage:
1.Dye printing mordant.
2.Textile antichlor after being bleached.
3.Reducing agent and sulfonating agent for chemical and medical use.
4.Bamboo, wood, paper fiber bleaching agent, non-ferrous metal ore dressing agent, waste water treating , rubber freezing agent.