About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsSodium Pyrosulfite

Bleach Agent / Preservative Sodium Pyrosulfite Food Grade Na2S2O5 97% Purity

Bleach Agent / Preservative Sodium Pyrosulfite Food Grade Na2S2O5 97% Purity

Bleach Agent / Preservative Sodium Pyrosulfite Food Grade Na2S2O5 97% Purity

Product Details:

Place of Origin: Hunan
Brand Name: OEM
Certification: ISO 9001,sgs
Model Number: sodium pyrosulfite-p

Payment & Shipping Terms:

Minimum Order Quantity: 1 metric ton
Price: usd 300 per metric ton
Packaging Details: 25 kgs bag,1000 kgs big bag
Delivery Time: 5-8 days
Payment Terms: T/T , L/C
Supply Ability: 3000 tons per month
Contact Now
Detailed Product Description
Name: Sodium Pyrosulfite Other Name: Sodium Metabisulfite
Situation: Dry Powder Grade: Food Grade
Usage: Food Additive Mocular: Na2S2O5



Product Name: Sodium metabisulfite
Category: Inorganic chemical/inorganic salt
CAS NO: 7681-57-4
EC NO: 231-673-0
Molecular Formula:



Item Quality spec.
food grade technical grade
Purity (Na2S2O5) ≥98.0% ≥970%
Sulfur dioxide( SO2) ≥65.0% 65.0%
Arsenic ( As ) ≤0.0002% -
Heavy metal (Pb) ≤0.0005% -
Selenium (Se ) ≤0.0005% -
Iron (Fe) ≤0.001% ≤0.002%
Insol. in water ≤0.02% ≤0.05%
pH-value : 4.0-4.8 4.0-4.8
Note: Meet FCC V and E 223 standard


Molecular Weight: 190.1
Packing: In PP woven bag lined with PE film bag, lining thickness≥0.05mm,25, 50, 1000kg/bag
Specifications: Properties: white or yellowish crystalline powder with strong SO2 odor; specific wt.: 1.4. soluble in water, its aqueous solution is acidic.
Molecular Formula: Na2S2O5
Molecular Weight: 190.10
CAS NO.: 7681-57-4
Use: As mordant for printing & dyeing; as dechlorinating agent for textile bleaching; as reducing agent and sulfonating agent for chemical and medical industries etc.




Sodium Metabisulfite
Molecular Formula: Na2S2O5
Molecule Weight: 190.12
CAS NO.:7681-57-4
UN: 2693

1) Food Grade: bleach agent(e.g. candies, cake, bamboo shoots, etc); loose agent(e.g. bread, cracker etc); antiseptic and germicide(e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc);
2) Industry grade: mordant of printing and dyeing; dechlorinate of textile after bleaching; sulphonated agent and reducer of chemical industry and pharmacy; bleach of paper pulp, bamboo and timber bleach of stap; treatment agent of waste water; rubber solidifying agent perfume industry is served as hydro carbon perfume aldehyde.
The hide profession employ to do to molt dose and piable dose and wearproof dose; sewage treatment, and so on.
3). Pharmaceutical grade: in chemical synthesis in the production of acrylic fibre, vitamin k, vitmin A, pharmaceutical intermediates, etc.
4). Photo grade: the sensitize industry is served as the developing agent reductant and the protection of fixing bath dose.
Storage: store the products in dry and cool place.

Bleach Agent / Preservative Sodium Pyrosulfite Food Grade Na2S2O5 97% Purity

Contact Details

Contact Person: Ms.xie

Tel: +8613975090964

Send your inquiry directly to us (0 / 3000)

Other Products