|
| Formula: |
Na2S2O4 |
|
| Molecular
weight: |
174.11 |
|
| CAS
NO.: |
7775-14-6 |
|
| Index: |
|
purity |
≥90%
|
≥88%
|
≥85%
|
| Iron(Fe)
|
≤20ppm
|
≤20ppm
|
≤20ppm
|
| zinc(Zn)
|
≤1ppm
|
≤1ppm
|
≤1ppm
|
| solution
appearance |
clear
|
clear |
clear
|
| water
insoluble |
≤0.05%
|
≤0.05%
|
≤0.05%
|
|
|
| Character: |
Free-flowing
white crystalline powder. Odorless or
with a slight odor of sulfur dioxide. |
|
Application: |
It
is widely used in the textile industry
for vat dyeing ,reduction cleaning ,printing
and stripping ,textile materials bleaching
.It is also used in bleaching paper pulps
, especially mechanical pulp;bleaching
kaolin clay and foodstuffs .As a reducing
agent ,it is used in organic synthesizing
.
|
|
| Packing: |
50kg
light blue drum. |
|
