Sodium dithionite (sodium hydrosulphite) is a powerful reducing agent widely used in mineral flotation, textile bleaching and chemical processing.
Inquire About This ProductSodium Dithionite, also known as sodium hydrosulphite, is a strong inorganic reducing agent supplied as a white to pale yellow crystalline powder. It reacts readily with oxidising agents and is highly soluble in water.
Our technical grade sodium dithionite meets stringent purity specifications and is supplied with a Certificate of Analysis. It is widely used across mining, textiles and chemical industries for its powerful reducing and bleaching properties.
| Chemical Name | Sodium Dithionite |
| CAS Number | 7775-14-6 |
| Molecular Formula | Na₂S₂O₄ |
| Purity | 85% min |
| Appearance | White Powder |
| Active Content | 85% min |
| Iron (Fe) | ≤ 0.005% |
| pH (10% solution) | 6.0 – 8.0 |
| Moisture | ≤ 1.0% |
| UN Number | UN 1384 |
| Hazard Class | Class 4.2 – Spontaneously Combustible |
Available in moisture-resistant packaging. Custom options on request.
| 25 kg Bag | PE/PP kraft bag, sealed |
| 250 kg Drum | Steel drum, nitrogen purged |
| 500 kg Bag | FIBC / big bag |
| Storage | Cool, dry, well-ventilated area away from incompatible materials |
Contact our team for pricing, availability and technical data sheets.
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