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Quick Details

  • Classification: Sulphate
  • Type: Sodium Sulphate
  • CAS No.: 7681-57-4
  • Other Names: Sodium metabisulfite
  • MF: Na2S2O5
  • EINECS No.: 231-673-0
  • Place of Origin: China (Mainland)
  • Grade Standard: Food Grade, Industrial Grade
  • Purity: 97%min
  • Appearance: white or yellowish crystalline powder
  • Application: Bleach, mordant
  • Brand Name: TNN
  • Model Number: TNN
  • Na2S2O5: 97.35%
  • Heavy Metals: 0.0005%
  • Arsenic: 0.0001%
  • Iron: 0.0018%
  • Water insoluble: ≤0.01%
  • PH: 4.48
  • annuual production: 36000 MT
  • Shipmark: As buyer's request
  • sodium metabisulfite Package1: 25kg/bag
  • sodium metabisulfite Package2: 1200kg FIBC bag/Jumbo bag

Packaging & Delivery

Packaging Details Sodium metabisulfite Package:25kg/bag
Sodium metabisulfite Shipmark: As buyer's request
Sodium metabisulfite professional loading container, without dumping and leaking,
shipping mark on bag and container door both,
fork lift and manual lift can be used during loading and unloading with pallet,
packing photo before and after loading container
Delivery Time 15-20days





Product Description


Product Name:Sodium metabisulfite

Appearance:  White crystal powder

Grade: Food Grade/ Tech grade

Package:25kg bag,1FCL=27MT

Certificate: ISO

Exported countries: USA, Australia, Africa, Middle Asian countries, South Africa


Application:Sodium metabisulfite

a. Sodium metabisulfite food grade apply in Bleacher (Sweet, pastry, water-soaked bamboo slices, etc.); loosening agent (bread, biscuit, etc.); corrosion resistance antiseptic (fruit juice, can, brewing, grain storage, etc.); antioxygen antistaling agent (acupuncture needle sprout, sea food, garden stuff, etc.)


b. Sodium metabisulfite tech grade, use as Printing and dyeing mordant; antichlor in after fabric bleaching; chemical and medicine reducer and sulfonating agent; bleaching agent of bamboo, wood and paper fiber; nonferrous metal dressing agent; waste water finishing agent; rubber coagulator; alkyl spice aldehyde in spice industry; depilating agent, softening agent and anti-wear agent in leather industry; reducer of developer and protective agent of fixative in sensitization industry


c. Sodium metabisulfiteis also used in floating agent in Copper Mining.


Certification of Analysis: Sodium metabisulfite Tech grade





97% MIN

IRON (Fe) 



































2. Certification of Analysis: Sodium metabisulfite (Food Grade)


ItemChinese standardCompany standard
Main content(Na2S2O5)≥96.5≥97.5
Fe(As content Fe)≤0.003≤0.0015
ClarityPass testClear
Heavy metal content (Pb)≤0.0005≤0.0002
Arsenic content (As)≤0.0001≤0.0001




























Product Overviews


Sodium metabisulfite Appearance: white crystalline powder

Sodium metabisulfite Package: 25kg bag,1FCL=27MT(without pallet)




1.Q: Can I get a sample for the sodium metabisulfite?

    A: Yes, we can provide 100-500gram sample for free.

 2.Q: What is the Shelf Life of the sodium metabisulfite?

     A: 1 years.

 3.Q: Which grade so you have for Sodium metabisulfite ?

     A: We have Food grade and tech grade

4.Q: Which purity you have for Sodium metabisulfite ?

    A:We can offer the 97% and 98% in white color


Without the products you want? Pls look here!!!! 




Professional Loading

1.We have one team supervise uploading the materials and check the container,packages.

2.Every step, taking pictures and make records.

3.We will make a complete Loading Report for our customer of each shipment.
























 1.Our own lab, test pre-shipment sample before shipment and keep batch samples

2.Warehouse in Dubai, USA, Australia to make shipment short





























Company Information


 The TNN Development Limited founded in 1998, with ISO9001:2008 certificate, works closely with its business partners from Europe, Asia, North America and Africa, handling business of over 500 products including fine chemicals, dyestuff, pharmaceutical raw materials, food additives, vitamins and inorganic chemicals.





Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

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Trade Assurance
China (Mainland) | Manufacturer, Trading Company
Transaction Level:
Supplier Assessments:
5 Transactions 7,000+
The supplier’s transactions conducted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $213,000
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