Huaian Chenhui Chemical Company Limited
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  • Contact Person : Mr. wang jiankun
  • Company Name : Huaian Chenhui Chemical Company Limited
  • Tel : 0086-0517-86230459
  • Fax : 0086-0517-84991859
  • Address : Jiangsu,huaian,NO9906 TongSheng garden Huai yin district Huai an City Jiangsu Province China.
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sodium metabisulfite

sodium metabisulfite
Product Detailed
sodium metabisulfite 1.monthly output about 3000MT 2.Purity(Na2S2O5): 96% Min 3.SO2 Content: 65% Min 4.CAS:7681-57-4

Product Name    Sodium pyrosulfite

molecular formula: Na2S2O5

Appearance:white  crystal  powder

Properties:

Sodium metabisulphite white or yellow crystalline powder or small crystallization, with strong smell, a proportion of SO2 1.4, soluble in water, become acidic aqueous solution, and acid contact is released SO2 generated corresponding salts, long for air, is oxidized to Na2S2O6, reason this product not far. Above 1500C, namely the SO2 decomposition.

Use:

Industrial used for printing and dyeing, organic synthesis, printing, the leather making, pharmaceutical and other department. In food processing of bleaching agent and antiseptic, osteoporosis agent.

Details:

Test item

Specification

Reagent grade

Pharmaceutical grade

Appearance

Conform

Conform

Assay /%

≥95.0

≥92.0

Clarify degrees test

Conform

Conform

Water insoluble /%

≤0.005

≤0.01

Chloride (Cl)/%

≤0.005

≤0.02

Arsenic  (As) /%

≤0.0001

≤0.0002

Ferric (Fe)/%

≤0.0005

≤0.002

Heavy metal (Pb)/%

≤0.0005

≤0.002

sodium metabisulfite



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