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Sodium Metabisulfite Uses for Water Treatment,Sodium Metabisulfite Oxygen Scavenger keep fresh

Categories Sodium Pyrosulfite
Brand Name: OEM
Model Number: sodium pyrosulfite-c
Certification: SGS,ISO 9001
Place of Origin: Hunan
MOQ: 1 metric ton
Price: usd 300 per metric ton
Payment Terms: T/T , L/C
Supply Ability: 3000 tons per month
Delivery Time: 5-8 days
Packaging Details: 25 kgs bag,1000 kgs big bag
name: sodium pyrosulfite coagulant in rubber industry
other name: sodium metabisulfite coagulant in rubber industry
grade: tech grade
usage: coagulant in rubber industry
stability: stable, may effect with moisture or air
ph value: 4-4.8
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Sodium Metabisulfite Uses for Water Treatment,Sodium Metabisulfite Oxygen Scavenger keep fresh


1, 98% min. sodium metabisulfite food grade
2, Competitive price
3, All batchs sodium metabisulfite quality invariablenes

Product name: 98% min. sodium metabisulfite food grade

Application: Sodium metabisulfite food grade mainly used for bleach (such as candy, cake, bamboo shoots, etc.); bulking agent (such as bread, biscuits, etc.); antiseptic (juice, canned, etc.); antioxidant preservative (such as lily buds, seafood, fruits and vegetables).

Packing: 25kg / bag or 50kg / bag, double packaging. Polyethylene plastic film bag inner packaging, packaging plastic bags.


1Content(Na2S2O5)98.0% min.
2Fe content0.005% max.
3Heavy metal(Pb)0.001% max.
4As content0.0002% max.
6Insoluble substance in water0.02% max.
7Sulfur Dioxide(SO2)65.0% min.

SODIUM METABISULFITE is a white crystalline or powder solid with a slight sulfur odor. Toxic by inhalation . Strongly irritates skin and tissue. Noncombustible, but may decompose to emit toxic oxide fumes of sulfur and sodium when heated to high temperature. A corrosive acid when mixed with water. Used as a food preservative and as a laboratory reagent.

Sodium metabisulfite/Sodium Pyrosulfite tech grade

Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant and preservativeagent.

Sodium metabisulphite

Sodium Metabisulphite SM is used as a preservative in the starch and food industry to control melanosis (black spot) in shrimp; for fermentation in the wine industry; as an antichlor in the chemical industry and as a redox catalyst in the acrylic fibre industry.

The product is also used as a reducing agent in the purification of aldehydes and ketones; in the manufacture of sulphonated oil and resin; for detoxification of cyanide in gold ore processing plants and in the manufacture of photographic chemicals.

Product specifications:

  • Sodium disulphite
  • Sodium pyrosulphite

This product is available in three grades:

  • Food
  • Technical


  • As a preservative in fruits and starch
  • As an enzyme inhibitor in melanin formation (black and brown spots)

Treatment of waste water
As an antichlor and in the detoxification of cyanide and chromate

For bleaching wool and jute

Gold mining
To destroy cyanides

Paper and pulp

  • For bleaching ground wood
  • As an antichlor

Photography and film
For developer solutions and acidifying fixing baths

Packaging and transportation
  • 25kg PPE woven / paper bags with heat-sealed HDPE inner liner
  • 25kg HDPE bags
  • 500kg; 1,000kg; 1,100kg bulk sacks

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