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Beijing KangPuHuiWei Technology Co.,Ltd.

Anhydrous sodium sulfite

Author：admin Time：2019-01-04 09:42:02

Anhydrous sodium sulfite NaSO3

Alias: sulfur powder

Relative molecular Weight:126.04

Properties: colorless crystal or whitecrystalline powder. In the air gradually into sodium sulfate.The relativedensity is 2.663.when heating will decomposition.Dissolved in water, slightlysoluble in ethanol.Aqueous solution is alkaline.it is reductive.

Product standard number:HG/T 3472-2000

Specifications: Content and content of impurities in %

Test Items	AR	CP
Content	97.0	95.0
Clarity test	Qualified	Qualified
Water insoluble matter	0.005	0.01
Acid sulphite（以NaHSO3计）	Qualified	Qualified
The free base（Na2CO3计）	0.1	0.3
Chloride（Cl）	0.005	0.02
Thiosulfate（S2O3）	0.01	0.03
Iron（Fe）	0.0005	0.002
Arsenic（As）	0.0001	0.0005
Heavy metals（以Pb计）	0.001	0.002

Usage:It can be use as analysis ofreagents,often use as reducing agent.Used as photosensitive resistancematerials, spectral analysis base solution. Also used in the photographic industry.

Large package anhydrous sodium sulfite reagent

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