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Tianjin Weikete Import & Export Co., Ltd.

China Manufacturer with main products: Soda Ash, Caustic Soda, Titanium Dioxide, Formic Acid, Rubber, Stpp, Shmp, PVC

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Sodium Metabisulphite


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Specifications

Classification Sulphate
Type Sodium Metabisulfite
CAS No. Cas No. 7681-57-4
Purity 64%  

Name: Sodium Metabisulfite
CAS No.: 7681-57-4
MF: Na2S2O5
Appearance: White or light yellow crystal powde
Application: Food bleach agent, paper, textile
Packing: 25kg/PP Bag, 24MT/20'FCL
 
 

Item   
Specification

 
Food Grade Tech Grade

Appearance
White or Slightly Yellow Crystalline Powder

Content
98.0% Min 98.0% Min

SO2
65.0% Min 65.0% Min

Na2S2O4
2.0% Max 2.0% Max

Insolubles In Water
0.05% Max 0.05% Max

Particle Size
85% (Mesh 200) 85% (Mesh 200)

pH
4.5 -5.5 4 -4.6

Fe
5ppm max 5ppm max

Heavy Metal
10 ppm max  

As
1 ppm max   

Service Process

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