Description
Genome Specialities FZC is a supplier and stockiest of Sodium Hydrosulfite (Sodium Dithionite), a powerful reducing agent widely used in textile processing, pulp and paper manufacturing, industrial water treatment, and specialty chemical applications.
With the chemical formula Na₂S₂O₄, Sodium Hydrosulfite is valued for its effective reducing, bleaching, and decolorizing properties.
More over it as a white to grayish crystalline powder and is used in various industrial processes to improve brightness, remove unwanted coloration, and support efficient chemical processing
As a chemical supplier and stockiest, Genome Specialities FZC focuses on providing quality products, competitive pricing, reliable supply, and responsive customer service to meet diverse industrial requirements.
Product Specifications of Sodium Hydrosulfite
| Property | Details |
| Chemical Name | Sodium Dithionite |
| Chemical Formula | Na₂S₂O₄ |
| Molar Mass | 174.11 g/mol (Anhydrous) |
| Molar Mass (Dihydrate) | 210.15 g/mol |
| Appearance | White to grayish crystalline powder or light lemon-colored flakes |
| Odor | Mild sulfurous odor |
| Density | 2.13 g/cm³ (Anhydrous), 1.58 g/cm³ (Dihydrate) |
| Melting Point | 52°C (Dihydrate) |
| Boiling Point | Decomposes before boiling |
| Water Solubility | Approximately 250 g/L at 20°C |
Industrial Applications of Sodium Hydrosulfite
Textile Industry
Sodium Hydrosulfite is widely used in textile manufacturing as a reducing agent for vat dyeing, indigo processing, bleaching, and color removal.
Applications include:
- Vat dyeing and indigo reduction
- Textile bleaching and color correction
- Dye stripping and color removal
- Discharge printing
- Reduction cleaning of dyed fabrics
used in pulp bleaching processes to improve brightness and reduce unwanted coloration while helping maintain fiber quality.
Applications include:
- Mechanical pulp bleaching
- Pulp brightness enhancement
- Paper manufacturing
- Industrial color reduction
used in selected industrial water-treatment processes due to its reducing properties.
Applications include:
- Residual oxidant reduction
- Iron stain removal under suitable conditions
- Industrial process-water treatment
- Oxygen-control applications where appropriate
Food Processing Industry
Specified food-grade products may be suitable for certain processing applications where permitted by applicable regulations.
Leather, Photography and Specialty Chemicals
Sodium Hydrosulfite used in selected leather-processing, photographic, and specialty chemical applications that require reducing or decolorizing agents.
Grades of Sodium Hydrosulfite Supplied by Genome Specialities
Technical Grade Sodium Hydrosulfite
Genome Specialities supplies Technical Grade Sodium Hydrosulfite for industrial applications, subject to product availability and specification requirements.
Key applications:
- Textile dyeing and bleaching
- Indigo processing and color stripping
- Pulp and paper bleaching
- Industrial water treatment
- Oxygen-scavenging applications
- Specialty chemical manufacturing
Food Grade Sodium Hydrosulfite
Food-grade material may be available subject to sourcing, certification, and applicable regulatory requirements.
Customers should confirm the intended application and destination-market requirements with our team before ordering.
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