Property : white crystal powder,relative density is 2.3~2.4, very easy to dissolve in water;hard to dissolve in alcohols. It can beoxidated into Sodium bisulfite and Sodium bisulfate.
Molecular Formula : Na2S2O4
Molecule Weight : 174. 09
CAS NO .: 7775-14-6
Appearance : White Free Flowing Crystal Powder
Specification :
Item | Quality Index |
||
Purity |
90% min
|
88% min
|
85% min
|
Zinc ( Zn) : |
0.0001% max
|
0.0001% max
|
0.0001% max
|
Heavy metals ( As Pb) |
0.0001% max
|
0.0001% max
|
0.0001% max
|
Iron (Fe) |
0.002% max
|
0.002% max
|
0.002% max
|
Water insolubles |
0.05% max
|
0.05% max
|
0.05% max
|
Packing photo: