Brand: weichuang
Model: 98
Price: CNY 240 / Ton
Min. Order: 10吨 Ton
food grade
technical grade
sodium sulphite
Package:25kg/50kg compound plastic woven bag with inner polythene liner ; 1000kg Jumbo bags,Any other particular requirements to the package can be discussed.


Shelf Life: one year


Application:bleaching agent for paper pulps ;waste water treatment; reducing and sulphonating agent for chemical synthesis ; bleaching agent for textiles; colors stripper and deoxidization ;floating agent for mining industry; auxiliary chemical in tanning process .


Storage & handling:Store the product in a cool and dry place; avoid contact sunshine , water and moisture; avoid contact with strong acid,oxidants or poisonous substances. Exposure to moisture will make it oxidze easily to sodium sulphate . 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

< 0.003%

< 0.002%

< 0.002%

WATER INSOLUBLW MATTER

< 0.02%

< 0.05%

< 0.05%

SODIUM SULFATE(Na2SO4)

< 2.5%

…………..

………….

NaCl

< 0.1%

……………

…………..