BAKECHEM INTERNATIONAL LIMITED.
BAKECHEM INTERNATIONAL LIMITED.
  • sodium metabisulfite
  • sodium metabisulfite

Sodium Metabisulfite 7681-57-4 CAS Number: 7681-57-4 Supplier

Sodium metabisulfite (Na2S2O5) is an inorganic compound, which is white or yellow crystal with a strong pungent smell. It is soluble in water and the aqueous solution is acidic. When it comes in contact with strong acid, it releases sulfur dioxide and generates corresponding salts. The main function of sodium metabisulfite is as an oxidizing agent. Mainly used as preservatives, bleaching agents and loosening agents in food processing. Sodium metabisulfite is commonly used as a preservative in the brewing industry.

Specifications of Na2S2O5 Sodium Metabisulfite Powder

Item

Specification

PURITY (AS Na2S2O5 )

97.0%MIN

SULFUR DIOXIDE (SO2)

65.0%MIN

HEAVY METALS (As Pb)

0.0005%MAX

WATER INSOLUBLE

0.05%MAX

IRON(Fe)

0.005%MAX

PH VALUE

4.0-4.8


PACKING: 25KG NET / BAG

STORAGE AND TRANSPORT: IN DRY AND COOL NORMAL TEMPERATURE

SHELF LIFE: 2 YEARS


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