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Sodium dithionite CAS 7775-14-6
Sodium dithionite Details
- Product name:Sodium dithionite
- Cas Number:7775-14-6
- Molecular formula:Na2O4S2
- Molecular weight:174.11
- Purity:85%
Sodium dithionite Specification
|
ITEM
|
STANDARD
|
TESTING RESULT
|
|
Purity(wt%)
|
85min
|
85.84
|
|
Na2CO3(wt%)
|
3-4
|
3.41
|
|
Na2S2O3(wt%)
|
1-2
|
1.39
|
|
Na2S2O5(wt%)
|
5.5 -7.5
|
6.93
|
|
Na2SO3(wt%)
|
1-2
|
1.47
|
|
Fe(ppm)
|
20max
|
18
|
|
Water lnsoluble
|
0.1
|
0.05
|
|
HCOONa
|
0.05max
|
0.04
|
|
Appearance
|
White crystalline powder
|
|
|
Odor
|
No or light sulfurous acid
|
|
Sodium dithionite Application
- Used in textile industry as reducing agent for VAT dye dyeing
- Used as bleaching agent for mechanical pulp, hot grinding mechanical pulp and deinking pulp in paper industry.
- Food grade lyu is used as bleaching agent, preservative, antioxidant.
- It is a strong reducing agent that can reduce many metal salts to metals.
Sodium dithionite Package and Storage
- 25 kg / drum
- Stored in clean and ventilated environment
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