Sodium Hydrosulfite 88% (also known as Sodium Dithionite) is a high-performance reducing agent widely used in textile dyeing, paper bleaching, mineral flotation, and chemical processing industries. It is supplied in powder form with minimum 88% purity, ensuring strong reduction efficiency and stable industrial performance.
Our product is suitable for textile mills, paper manufacturers, leather processors, and water treatment applications.
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| CAS Number | 7775-14-6 |
|---|---|
| IUPAC Name | Sodium Dithionite |
| Molecular Formula | Na₂S₂O₄ |
| Molecular Weight | 174.11 g/mol |
| Grade | industrial Grade |
| Purity | 88% min |
| EC Number | 231-890-0 |
| UN Number | UN 1384 |
| HS Code | 28311010 |
| Synonyms | Sodium Dithionite Sodium Hydrosulfite Hydros Sodium Sulfoxylate |
| Appearance | White to slightly yellow crystalline powder |
|---|---|
| Odor | Slight sulfur odor |
| pH | 5 – 7 (1% solution) |
| Density | Approx. 2.38 g/cm³ |
| Melting Point | Decomposes above 52°C |
| Solubility | Soluble in water, decomposes in hot water |
| Storage Conditions | Store in a cool, dry, well-ventilated area. Keep away from moisture, acids, oxidizing agents, and heat. Keep tightly sealed to prevent decomposition. |
| Hazard Statements | May cause fire upon contact with moisture Harmful if inhaled Causes skin and eye irritation Releases toxic sulfur dioxide gas upon decomposition |
|---|---|
| GHS Pictograms | Flame , Exclamation Mark , Environment |
| Regulatory References | REACH Registered Complies with international industrial chemical standards |
| Key Uses | Textile dyeing & printing (vat dye reduction) Paper pulp bleaching Leather processing Mineral flotation Water treatment Chemical intermediate manufacturing |
| Price Valid Until | 2026-04-30 |
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