Product Name: Sodium Metabisulfite

CAS No.: 7681-57-4

Formula: Na2s2o5

EINECS: 231-673-0

M.F.:Na2S2O5

Appearance:White crystalline powder

Specification：98%

Specification

Sodium metabisulfite is a white or yellow crystalline powder or small crystal with a strong SO2 odor, a specific gravity of 1.4, soluble in water, and the aqueous solution is acidic. When it is in contact with a strong acid, it releases SO2 to form a corresponding salt. When it is left in the air, it oxidizes. It is Na2S2O6, so the product cannot be stored for a long time. Above 150 degrees Celsius, SO2 is decomposed.

Applications:

1 Used in wide range of industrial and municipal waste water treatment.

2 Used in pulp and paper making.

3 Used in mining industry.

4 Used in production of cleaning agents, detergents ans soaps.

5 Used in sterilizing the equipment in beer and wine manufacturing.

6 Used in water reducing agent for concrete admixture in construction industry.

7 Used in dye industry.

8 Used in oil field production and disinfection.

9 Used in removal of tree stumps in landscape gardening.

10 Used in water treatment in leather tanning process.

11 Used in food preservative for dried foods

Packing:

plastic woven bag with PE liner.Other package sizes are available upon request.

Storage:

Store in a cool, dry, ventilated environment.

Shelf life:

2years