Name：
Sodium Sulfite
Chemical formula：
Na2SO3
Physical appearance：
White crystalline powder.
Quality standard：
HG/T 2967-2000
Description：
Sodium Sulphite, Sodium Sulfite
Application:
1>Bleaching agent for paper pulps ;
2>Waste water treatment；
3>Reducing and sulphonating agent for chemical synthesis ；
4>Bleaching agent for textiles；
5>Colors stripper and deoxidization ;
6>Floating agent for mining industry;
7>Auxiliary chemical in tanning process .
Package:
1>25kg/50kg compound plastic woven bag with inner polythene liner ;
2>1000kg Jumbo bags;
3>Any other particular requirements to the package can be discussed.
Shelf
Life:
One year.
Storage & handling:
1>Store the product in a cool and dry place；avoid contact sunshine;
2>Water and moisture;
3>Avoid contact with strong acid,oxidants or poisonous substances;
4>Exposure to moisture will make it oxidze easily to sodium sulphate;
5>Not store it for a long time.
Product Specification:
ITEM FOOD
GRADE TECH GRADE TECH GRADE
Na2SO3
>97%
>96% >93%
FREE ALKALI
<0.1%
<0.4% <0.4%
IRON
<0.002% <0.005% <0.005%
WATERINSOLUBLE MATTER
<0.02% <0.05% <0.05%
SODIUM SULFATE(Na2SO4) <2.5%
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NACL
<0.1% ----------
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