Sodium Hydrosulphite
High-Purity Sodium Hydrosulphite for Textile Dyeing, Paper Manufacturing & Industrial Applications
₹189.00
Sodium Hydrosulphite (Na2S2O4) is also known as sodium dithionite. It is a powerful, white crystalline water-soluble reducing agent with a faint sulfurous odor. It is widely used in industry for vat dyeing (especially indigo), bleaching textiles (cotton/wool) and deinking recycled paper. It acts as a decolourising agent, removing rust stains and whitening and is highly reactive.
Applications of Sodium Hydrosulphite:
Textile Industry: It is very important for vat dyeing (reducing insoluble dyes to soluble leuco-dyes) and stripping color from dyed fabrics.
Pulp & Paper Industry: It is used as a bleaching agent to increase brightness in mechanical pulp and for deinking recycled fibers.
Water Treatment: Sodium Hydrosulphite is used as a deoxygenator and to remove heavy metals and pollutants from effluent water.
Chemical Processing: It is used as a reducing agent in organic synthesis, polymer production and mineral flotation.
Cleaning & Household: Sodium Hydrosulphite acts as a rust remover and a color-stripper for laundry.
Food Industry: It is used as a preservative or bleaching agent in certain food products (e.g., starch, molasses) in some jurisdictions.
Photography: It is used as a reducing agent in some photographic developer formulations.
Leather Industry: It is used in the bleaching and processing of leather.
Product Specifications – Sodium Hydrosulphite:
Parameter | Specification |
|---|---|
Product Name | Sodium Hydrosulphite |
Chemical Name | Sodium Dithionite |
Chemical Formula | Na₂S₂O₄ |
CAS Number | 7775-14-6 |
Molecular Weight | 174.11 g/mol |
Appearance | White to off-white crystalline powder |
Assay / Purity | Typically ≥ 85% |
Active Sodium Dithionite Content | 85% minimum, as per grade |
pH (Aqueous Solution) | Typically 6.0–9.0, depending on concentration |
Solubility | Soluble in water; decomposes under unsuitable conditions |
Odour | Characteristic sulphurous odour |
Grade | Industrial Grade / Textile Grade |
Packaging | 50 kg drums |
Storage | Store in a cool, dry, well-ventilated place, protected from moisture and heat |
HSN Code (India) | 28311010 |
MOQ: 50 Kg.
📍INDOREX CHEMICALS
Office No. 21, Ground Floor, N.G. Park Building No. 1 Co-operative Housing Society Ltd., Shiv Vallabh Cross Road, Rawal Pada, Dahisar East, Mumbai– 400068, India
Business Working Hours: Monday to Saturday: 9:00 AM – 7:00 PM Sunday: Closed
GSTIN: 27AMEPM2953Q1ZF
Udyam Registration No.: UDYAM-MH-18-0103711
📞 Mobile / WhatsApp: +91-9005767924
📧 Email: indorexchemicals@gmail.com
🌐 Website: www.indorexchemicals.com
IEC No.: AMEPM2953Q
Industrial Chemicals | Acids | Alkalis | Solvents | Water Treatment Chemicals | Specialty Chemicals
Indorex Chemicals – Trusted Industrial Chemical Supplier in India