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Sodium Bisulfite

Sodium Bisulfite

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China, Mianyang
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Description
Standard Executed : QB
Molecular Formula: NaHSO3
MW: 104
Appearance : White crystallites powder
Description : It has the smell of sulfur dioxide. It can lose some part of sulfur dioxide in the air, at the same time it is oxidated to the sulfate. It can be dissolved about in the water, while can be dissolved slightly in the ethanol, and the water solution shows acidity. Normally, it includes many kinds of the different proportion of Sodium metabisulfite.
Usage: It can be used as the deoxidizer and decolourant in the printing and dyeing industry. It can be used as developer in the sensitization industry. It can be used the reducing agent in the organic industry. It can be used as stabilization agent of the synthetic fiber in the weave industry. It also can be used in the medicament industry, the paper-making, the electron and the water treatment.

Technical Specifications:

Specifications


Reagent Grade


First Grade


Tech Grade

Main Content, as Sodium Bisulfite % ≥


99.5


99.5


98

Sulfur Dioxide, as SO2 % ≥


65


63


58.5~65

The highest content of impurity % ≤










The testing for defecation degree


Eligibility


Eligibility


Eligibility

Water insoluble % ≤


0.005


0.01


0.1

Chlorid, as Cl % ≤


0.01


0.02


--

Fe % ≤


0.001


0.002


0.015

Arsenic, as As % ≤


0.0001


0.0002


--

Heavy Metals, as Pb % ≤


0.001


0.002




PH Value


4~4.9


4~4.9


4~4.9
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Sodium Bisulfite
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