|
Sodium
Hydrosulphite
|
Sodium
hydroslphite Introduction |
| Sodium
Hydrosulphite Application: |
1. Vat dyeing,printing and
stripping,reduction cleaning
2. Textile materials(silk,wool,nylon and
other fibers)bleaching
3. Pulp and paper brightening
4. Pulp deinking
5. Kaolin clay bleaching
6.
Foodstrffs(srgar,honey,gelatin,etc)bleaching
7. chemical synthesizing |
| Sodium
Hydrosulphite specific hazards: |
Our
sodium hydrosulphite is highly stable when
stored in dry closed
containers.However,all sodium
hydrosulphite by natrue is a very reactive
chemical which can edcompose exposed to
air and moisture or contasts with small
quantities of water.Decomposition will
result in spontaneoously ignition and
liberating toxic gas -- SO2.React
violently with oxidants which will lead to
combustion or explosion. |
| Sodium
Hydrosulphite Extinguishing Method: |
Using sufficient amount of
water drown the product completely.Other
extingushing media may not stop
deconposition thoroughly. |
| Sodium
Hydrosulphite Extinguishing |
Amount of water. |
Sodium Hydrosulphite typical analysis
|
Specification
|
90%
|
88%
|
85%
|
Food
grade
|
|
Na2S2O4
|
³90%
|
³88%
|
³85%
|
³85%
|
|
Fe
|
£20ppm
|
£20ppm
|
£20ppm
|
£20ppm
|
|
Zn
|
£ 1ppm
|
£ 1 ppm
|
£1ppm
|
£
1ppm
|
|
Solution Appearance
|
Clear
|
Clear
|
Clear
|
Clear
|
|
Other
heavy metal (as pb)
|
—
|
—
|
—
|
—
|
|
HCHO
|
—
|
—
|
—
|
<0.
05%
|
|
Water insoluble matter
|
£0.05%
|
£0.05%
|
£0.05%
|
—
|
|
Reserve
period (months)
|
12
|
12
|
12
|
12
|
In addition to powder
sodium hydrosulphite,we can also supply fine
quality sodium hydrosulphite to end-users in
pulp&,paper,testile and kaolin clay
indrstries by dissolving the powder hydro.
|
