Sodium Sulfite Anhydrous

Sodium Sulfite Anhydrous food grade
Product Name:
Sodium Sulfite Anhydrous 
Products ID:
11216121716
CAS NO:
Product category:
Preservative
Remarks:

Description

[Introduction]:

Sodium Sulfite Anhydrous 96% has the smell of sulfur dioxide. Sodium Sulfite Anhydrous can lose some part of sulfur dioxide in the air, at the same time it is oxidated to the sulfate. Sodium Sulfite Anhydrous 97% 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.

[Uses]:

1.Sodium Sulfite Anhydrous is used as deoxidizer and bleaching agent in the scouring of cotton fabrics;
2.Sodium Sulfite Anhydrous is used as developer in photosensitive industry;
3.Sodium Sulfite Anhydrous is used as reductant in the production of m-phenylenediamine, 2,5 dichloropyrazolone, anthraquinone-1-sulfonate, 1-aminoanthraquinone and Aminosalicylic acid, sodium salt ;
4.Sodium Sulfite Anhydrous is used as removing agent of lignin, stabilizer of artificial fiber,
5. Sodium Sulfite Anhydrous is used in light dependent resistors, the treatment of plating sewage and drink water.

[Specification]:

Item
Chinese standard
GB1894-2005 
Company standard
sodium sulfite (Na2SO3), mass fraction /%
96.0
97.0
Fe, mass fraction /%
≤0.01
≤0.001
Free alkali(As content Na2CO3), mass fraction /%
≤0.60
≤0.4
Heavy metal content(Pb), mass fraction /%
≤0.001
≤0.0005
As content (As content), mass fraction /%
≤0.0002
≤0.0002
Clarity
Passed
Passed
[Packing]: polypropylene weaving bag lined with polyethylene plastic bag, paper plastic compound bag, etc.
[Net wt.]: 25/50/1000kg/bag or upon clients’ request.