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Sodium Sulphite anhydrous Na2SO3
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China Raw materials
Raw materials

Sodium Sulphite anhydrous Na2SO3

Quantity : one contai   Price : FOB: $385/TON

Sodium Sulfite 90% 93% 96% 97%

Food Grade & Industrial Grade

is a soluble sodium salt of sulfurous acid (sulfite) with the chemical formula Na2SO3.It is a white crystal powder or granule that tastes salty with sulphur odor,

CAS RN.:

7757-83-7

EINECS:

231-821-4

H.S.CODE:

2832.1000.00

1. Chemical Analysis

Component

Range

Typical

Na2SO3 %

≥ 97.0 %

97.37%

Fe %

≤ 0.003%

0.003%

Water insoluble matter

≤ 0.02%

0.02%

Na2CO3

≤ 0.10%

0.10%

Na2SO4

≤ 2.5%

2.5%

2. Application

Pulp and paper industry

Lignin removal agent

Water treatment

Oxygen scavenger agent.

Photographic industry

To protect developer solutions from oxidation and (as hypo clear solution) to wash fixer (sodium thiosulfate) from film and photo-paper emulsions.

Textile industry

Bleaching, desulfurizing and dechlorinating agent

Chemical manufacturing

Sulfonation and sulfomethylation agent. It is used in the production of sodium thiosulfate.

Leather trade

The sulfitization of tanning extracts

Other applications

l froth flotation of ores

l oil recovery

l food preservatives

l making dyes

l It is used in the purification of TNT for military use.

3. Transportation Information:

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Location : Qilishan community, Yueyang, Hunan, China, 414000 Yueyang,
Contact : lucy lucy, 8613873003025

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Sodium Sulphite anhydrous Na2SO3

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