• Sodium metabisulphite
• Sodium disulphite / Sodium disulphite
• Sodium pyrosulphite / Sodium pyrosulphite
  

This product is available in three grades:

• Photo
• Food
• Technical
  

Molecular weight: 190.12

Appearance: White, free-flowing crystalline powder

Odour: Slight odour of sulphur dioxide

CAS No: 7681- 57- 4

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

• 25-kg-polypropylene woven / paper bags with heat-sealed HDPE inner
• 25-kg HDPE bags
• 500-kg; 1,000-kg; 1,100-kg bulk sacks