Changsha Weichuang Chemical Limited| Manufacturer
Changsha Weichuang Chemical Limited

China Manufacturer with main products: Sodium Metabisulfite, Sodium Thiosulfate, Sodium Sulfite, Ferrous Carbonate, Soda Ash, Sodium Bicarbonate, Ferrou Sulfate, Inorganical Salt

Home  >Products Catalog > Sodium metabisulfite > Manufacturer Supply Sodium Metabisulphite 97% Food/Tech Grade CAS 7681-57-4

Manufacturer Supply Sodium Metabisulphite 97% Food/Tech Grade CAS 7681-57-4

Supply Ability: 5,000 Metric Ton per Month
Payment Terms: L/C, D/A, D/P, T/T, O/A CAD
Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Hunan in China
Packaging Details: 25/1250KG BAGS

Quick Details

  • Classification: Other Inorganic Salts
  • Application: textile bleaching agent, food addtive, leather
  • Appearance: White powder or small crystalline particles.
  • Purity: 97% 98%
  • Grade Standard: Food Grade,Industrial Grade
  • CAS No.: 7681-57-4
  • Other Names: Sodium disulfite
  • type: manufacturer



1>Bleaching agent for textile fibres;

2>Colors stripper and dechlorination;

3>Preparation of Indigo Vat Dye;

4>Solubilizing and acidyfing agent for leather industries;

5>Bleaching agent forpaper pulps;

6>Preservative and sterilisation agent for food industries.



1>25kg /50kg compound plastic woven bag with inner polythene liner;

2>1000kg Jumbo bags;

3>Any other particular requirements to the package can be discussed.


Shelf Life:half one year.


Storage & handling:

1>Store the product in a cool and dry place;

2>Prevent from direct sunlight,water and moisture;

3>Avoid contact with strong acid,oxidants or poisonous substances;

4>Exposure to moisture will make it oxidze easily to sodium sulphate;

5>Do not store it for long time.


Product Specification:

                                       TECH GRADE     FOOD GRADE

NA2S2O5                            >96.5%          >97.0%

SO2                                      >65%              >65%

FE                                        <0.005%          <0.003%

WATER INSOLUBLE        <0.05%           <0.05%

HEAVY METAL(PB)        <0.001%          <0.001%

as                                      <0.0003%       <0.0001% 

Manufacturer Supply Sodium Metabisulphite 97 FoodTech Grade CAS 7681574

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