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Changsha Weichuang Chemical Co., Ltd.

China Manufacturer with main products: Sodium Metabisulphite, Sodium Thiosulpha, Sodium Sulphate, Ferrous Sulfate

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Supply Sodium Sulphite 97% 96% 93%

FOB Price: 280.00 - 320.00 USD/Metric Ton
Payment Terms: L/C, D/A, D/P, T/T
In Stock

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Quick Details

  • Classification: Sulphate
  • Brand Name: Weichuang
  • Appearance: white powder
  • Purity: 97%
  • Grade Standard: Food Grade,Industrial Grade
  • CAS No.: 7757-83-7
  • Type: Sodium Sulfite



Sodium Sulfite

Chemical formula:


Physical appearance:

White crystalline powder.

Quality standard:

HG/T 2967-2000



1>Bleaching agent for paper pulps;

2>Waste water treatment;

3>Reducing and sulphonating agent for chemical synthesis ;

4>Bleaching agent for textiles;

5>Colors stripper and deoxidization;

6>Floating agent for mining industry;

7>Auxiliary chemical in tanning process.




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: one year.


Storage & handling:

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

2>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>Not store it for a long time.


Product Specification:

ITEM                                        FOOD GRADE  TECH GRADE  TECH GRADE

Na2SO3                                          >97%             >96%                    >93%

FREE ALKALI                               <0.1%            <0.4%                   <0.4%

IRON                                              <0.00%2         <0.005%              <0.005%

WATERINSOLUBLE MATTER     <0.02%           <0.05%                <0.05%

SODIUM SULFATE(Na2SO4)       <2.5%            ---------              ----------

NACL                                              <0.1%            ----------              ---------

Supply sodium sulphite 97 96 93

Service Process

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  • Deposit Service Commitments

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    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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