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sodium sulfite

sodium sulfite

Introduction

:Molecular formula : Na2SO3

Molecular weight : 126.04

CAS NO.: 7681-57-4

Standard: HG/T2967-2000

Appearance : white crystalline powder

Main content :97%,96%,93%

Properties:

Usage:

1.for the repparation of a trace analysis of tellurium and determination of niobium and developering, also used as a reducing agent

2.for synthetic fiber fabric bleaching agent, stabilizer, photographic developer, dye bleaching deoxidizer, perfume and dye reduction agent, lignin removal agent

3. Used as ordinary analytical reagent and photosensitive resistance materials

4. Reductive bleaching agent, the food has strong inhibitory effects on plant food bleaching effect and the oxidase.

5.For a variety of cotton fabric scouring of cotton fiber, can prevent local oxidation and influence of fiber strength, and improve the whiteness of boiling

Standard

Commodity

Anhydrous Sodium Sulfite

MF

Na2SO3

CAS NO.

7757-83-7

Inspection date


ITEM AND RESULT

ITEMS

STANDARD

RESULTS

Na2So3%

≥97.00%

97.09%

FE%

≤0.003%

0.0025%

Insoluble solid in water%

≤0.02%

0.01%

Na2Co3%

≤0.1%

0.10%

Na2So4%

≤2.5%

2.5%

NaCl%

≤0.1%

0.1%

Appearance

White crystals or crystalline powder

QUALIFIED

Package: Double-layer plastic woven bag. Net weight per bag: 25Kg or 50Kg.


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