Sodium Hydrosulfite Sodium Dithionite,
Sodium Hydrosulphite
- Chemical Name: Sodium Hydrosulfite
- Synonyms: Sodium Dithionite, Sodium Hydrosulphite
- Molecular Formula: Na2S2O4
- Molecular Weight: 174.09
- CAS Number: 7775-14-6 Sodium Dithionite,
Sodium Hydrosulphite
Product Specifications
| Product Properties |
Standard Specifications |
| Purity, w/t % |
88 Min. |
| Na2CO3 |
2-3 |
| Na2S2O3 |
1-1.5 |
| Na2S2O5 |
0.5-1.0. |
| Na2SO3 |
0.5-1.5 |
| HCOONa |
2.5-3.5 |
| Iron (ii, iii), % |
0.0018 Max. |
| Water insolubles, % |
0.1 Max.. |
| Odor |
A little SO2 smell |
| Appearance |
White crystalline powder |
Product Application
This compound is a water-soluble salt, and can be used as a reducing
agent in aqueous solutions. It is used as such in some industrial
dying processes, where an otherwise water-insoluble dye can be
reduced into a water-soluble alkali metal salt. The reduction
properties of sodium dithionite also eliminate excess dye, residual
oxide, and unintended pigments, thereby improving overall colour
quality. It can also be used as a bleach,
in, for instance, paper pulp, cotton, wool, and kaolin clay.
This chemical can also be used for water
treatment, gas purification, cleaning, and stripping. It can
also be used in industrial processes as a sulfonating agent or
a sodium ion source. In addition to the textile industry, this
compound is used in industries concerned with leather, foods,
polymers, photography, and many others. Its wide use is attributable
to its low toxicity LD 50 at 5 gm/kg, and hence its wide range
of applications.
Transportation
- Proper Shipping Name: Sodium Hydrosuphite (Sodium Hydrosulfite)
- Class: 4.2 (Flammable Solid)
- UN Number: 1384
- EMS: F-A, S-J
Packing
Net 50kg iron drums with inner double polyethylene
liner, or transported by intermediate bluk container (IBC).
For more information, please feel free to contact with Mr.Jerry
Zheng or please send E-mail:
info@runyoutech.com
Tel: +86 138 58587756 |
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