Buy Sodium Metabisulfite, Sodium metabisulphate Na2S2SO5

CAS RN.:

7681-57-4

EINECS:

231-673-0

H.S.CODE:

2832.1000.00

Component

Industrial Grade

Food Grade

Medicine Grade

Appearance

The white or yellowish crystalline powder

Assay(Na 2 S 2 O 5 ;)

96.5%min

97%min

98%min

water-insoluble matter

0.05%max

0.03%max

0.02%max

Iron content(Fe)

0.005%max

0.003%max

0.002%max

Arsenic content(As)

0.0001%max

0.0001%max

0.0001%max

Pb

0.0005%max

0.0005%max

0.0003%max

Industrial Uses

Water Treatment

1. Eliminating dissolved oxygen in wastewater and in pipes;

2. Cleaning water pipes and reverse osmosis membranes in desalinization equipment as it is an antibacterial.

3. Sodium metabisulfite; is used in water treatment plants to remove excess chlorine.

Bleaching Agent

Sodium metabisulfite's; functions as a bleaching agent, which is useful in making paper pulp, cotton, and wool.

Food Preservative

Antimicrobial

1. Sodium metabisulfite is commonly used as a food preservative for dried foods, as well as fruit concentrate juices.

2. Sodium metabisulfite;acts as an antimicrobial, inhibiting the growth of fungi and bacteria, thereby keeping food fresh and safe.

In beer and wine manufacturing,; sodium metabisulfite; is used as both a sterilizer and an antioxidant in the process of brewing beer or fermenting wine.

Other Uses

Medicinal

Sodium metabisulfite is an antioxidant additive in injectable medicines and is also used as a reducing agent in pharmaceuticals.

Photographic and film industry

For preparing developer solutions, for acidifying fixing baths (photo grade).

Landscape Gardening

Sodium metabisulfite used in landscape gardening as a tree stump remover, as it disintegrates the lignin -- chemicals in plant cell walls -- in the tree stumps, making them easier to remove.

Fiber Industry

In the sulphitisation of tanning extract.

Gold mining

For bleaching groundwood, as an antichlor.