huizhong

Alias: Sodium hydrogen sulfite <br />
Name in English: Sodium Bisulfite<br />
Molecular formula: NaHSO3<br />
Molecular weight: 104.06<br />
Properties: It is white oblique crystal powder with the odor of sulfur dioxide Density: 1.49; Dissolving in water, slight dissolving in alcohol; It decomposes in heating and has well reducibility; It is easy to be oxidized in the air or lose sulfur dioxide. It always contains sodium metabisulfite of various scales.<br />
Quality standard: HG/T 3814-2006

 <br />
ItemIndex<br />
Main content (SO2),  % ≥64.0 - 67.0<br />
Water-insoluble,  % ≤0.03<br />
Chloride (Cl),  % ≤0.05<br />
Iron (Fe),  % ≤0.004<br />
Heavy metal (Pb), % ≤0.001<br />
Arsenic (As),  % ≤0.0002<br />
Ph value (50g/L solution)4.0 - 5.0<br />
 <br />
Applications:


Bleaching of cotton fabric;
Reducer in the industries, such as dyeing, paper-making, tanning, chemical synthesis, etc.;
Medicine intermediate;
Photographic developer;
Food bleacher;
Preservative;
Antioxidant, etc.