Sodium Hydrosulphite
Sodium Hydrosulphite is used in Vat/Indigo dyeing, reduction clearing of dyed synthetic fabrics and yarns, cleaning dye-soiled dyeing machines, stripping fabrics before re-dyeing, as a reductive bleaching agent for recycled pulp, and for bleaching of Kaolin clay.
| Description | Value |
|---|---|
|
Chemical Formula
|
Na2S2O4 |
|
Molecular Weight
|
174.10 |
|
Bulk Density
|
0.9-1.0 g/cc |
| Solubility in water (20° C) |
190 gm/liter |
| CAS Number |
7775-14-6 |
Applications
TEXTILES
- Reduction agent for vat-dyeing cotton fibers and blends.
- Reduces and eliminates colors not absorbed in polyester fibers.
- Reduction agent for stripping colorants from textile fibers and in cleaning dyeing equipment.
PULP AND PAPER
- Bleaching agent for mechanical and thermo-mechanical pulp and for deinking recycled paper.
OTHERS
- Bleaching agent for sugarcane, glues, gelatins, soaps, oils and clay.
- Reducing or bleaching agent in production of dyestuffs and pharmaceuticals.
- Reduction of hexavalent chromium to trivalent state for effluent treatment.
Certificates
ISO 45001: 2018
ISO 14001 : 2015
ISO 9001 : 2015
Kosher Certificate
Kosher Certificate
Kosher Certificate
Storage
Keep drums away from moisture, water, heat, acids and oxidizers to avoid hazards. Decomposition caused by heat or contaminants may release Sulfur Dioxide and other toxic gases, which are extremely hazardous to human health.
Safety Precautions
In case of fire, use sand or fire extinguisher with abundant quantities of water to dissolve the powder and dissipate heat. When possible, product should be spread out before water is used. In case of contact with eyes and/or skin, flush thoroughly with water. Water in large quantity is the only effective extinguishing agent for Sodium Hydrosulfite fire.
