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Sodium metabisulphite

Sodium metabisulphite is marketed under the brand Birlasulf Sodium Metabisulphite (Birlasulf SM).

Birlasulf 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.

Sodium metabisulphite is manufactured by Aditya Birla Chemicals (Thailand).

Product specifications:
Formula: Na2S2O5
Synonyms
  • Sodium disulphite
  • Sodium pyrosulphite
Grade:

This product is available in three grades:

  • Photo
  • Food
  • Technical
Applications:

Food

  • 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

Textile
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
View Material Safety Data sheet

View Technical Data sheet


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