Character & Purpose: White crystal powder，Mainly use for medicine,
glass, printing and dyeing, fertilizer,etc..
Packing: in 25KG net PP PE bags
Formula: Na2S2O3
Standard:
|
Item |
Spec. |
Typical Results |
|
Na2S2O3/% |
97.0 Min. |
97.25 |
|
Water-insoluble/% |
0.03 Max. |
0.01 |
|
Sulphide(as Na2S)/% |
0.001 Max. |
0.0002 |
|
Fe /% |
0.005 Max. |
0.01 | |
