Sodium hydrosulphite
Molecular formula： Na2S2O4
Appearance：white free-flow crystal powders
Smell：flavourless or smell of sulfur dioxide
Packing： 50kg net in iron drums
（Product specifications）：
Appearance：white free-flow crystal powders
Smell：flavourless or smell of sulfur dioxide
Packing： 50kg net in iron drums
（Product specifications）：
|
INDEX |
88% |
|
Na2S2O4 |
≥88% |
|
Fe |
≤20ppm |
|
Zinc（Zn） |
≤1ppm |
|
Other heavy metal
（calculated as Pb） |
≤1ppm |
|
Water Insolubles |
≤0.05% |
|
Shelf Life(month) |
12 |
Application:
our products are chiefly used in pulp, printing and dyeing, spinning and weaving, and porcelain clay ……
our products are chiefly used in pulp, printing and dyeing, spinning and weaving, and porcelain clay ……