China Sodium Sulfite,Sodium Sulfite SupplierChina Sodium Sulfite,Sodium Sulfite SupplierChina Sodium Sulfite,Sodium Sulfite SupplierChina Sodium Sulfite,Sodium Sulfite Supplier

China Sodium Sulfite,Sodium Sulfite Supplier

  • 1. CAS No.: 7757-83-7; MF: NA2SO3 ; E No.: 231-821-4
  • 2. Grade: Agriculture Grade, Food Grade, Industrial Grade, Reagent Grade
  • 3. Appearance: Solid crystalline powder
  • 4. Package: In 25kg bags
  • 5. Shelf life:  2 Years
  • 6. Competitive price with high quality
  • 7. Purity: 93%,96%,97%
  • 8. MOQ: 10MT

Sodium Sulfite Specifications


Quality Index

Industry Grade

Food Grade

Purity ( As Na2SO3)

96.0% min

98.0% min

Sodium sulphate ( SO4)

2.0% max

1.0% max

Chlorides ( As NaCL)

0.5% max

0.1% max

Arsenic ( As )


0.0002% max

Heavy metals ( As Pb )


0.0005% max

Iron (Fe)

0.005% max

0.002% max

Water insolubles

0.05% max

0.02% max



Packaging & Shipping

Sodium Sulfite  Packaging: 25kg/bag or according to client request
Sodium Sulfite  Delivery Detail
2 weeks after confirm order.

Some of the products can be supplied within 7 days on the strength of EDC warehouse.


Our Services

1. Complex chemical supplier in China with over 5 years of experience.

2. Arrange the orders and shipping with cus requests in time, According to the different 

     countries export policy provide complete customs clearance documents.

3. Variety of high quality chemical products with competitive price.


Company Information

Hubei Ocean Biotechnology has concentrated on food additives,Vitamins,and some relative chemicals for over 20 years domestic experience and 5 years of international experience.



1. What's your payment terms?
T/T or L/C.

2. What's your delivery time?
Usually we will arrange the shipment in 7 -15 days,due to different products you choose.

3. How about the packing?
Usually we provide the packing as 25 kg / bag or carton,and also as your request bag.

4. How about the validity of the products?
According to the products you ordered.

5. What documents you provide?
Usually, we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate 

and Origin certificate. If your markets have any special requirements, let us know.

6. What is loading port?
Usually is Shanghai,Qingdao or Tianjin.

Wuhan Ocean Biotech Co., Ltd.


Contact Person:Ray Dean

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