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Cleansol Sodium Metabisulphite (SMBS)
About this item
- Reducing agent and antioxidant: Sodium metabisulphite (SMBS), a white powder that releases sulphite / SO2 in water as a strong reducing agent.
- Removes chlorine and oxygen: Neutralises free chlorine and scavenges dissolved oxygen, and acts as a preservative and antioxidant in industrial processes.
- Common uses: RO feed dechlorination, textile bleaching anti-chlor, pulp and paper, leather, photography and chemical processing.
- Dosing guide: About 1.5–3 ppm SMBS per 1 ppm free chlorine in water treatment; prepare fresh solution daily.
- Industrial grade powder: Industrial grade white to off-white powder in 500 g to 25 kg packs. GST invoice.
Prefer road transport? For orders of 25 kg and above, tick Send by road transport (to-pay) in the cart and add your transporter’s name and number. You pay the freight to the transporter on delivery.
Dispatched in 1–2 working days from Jodhpur. Delivery across India.
In stock
GST invoice with every order
- Ships from
- Cleansol, Jodhpur
- Sold by
- Cleansol (manufacturer)
- Invoice
- GST invoice provided
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Specifications
| Chemical name | Disodium disulphite / sodium metabisulphite (Na2S2O5) |
|---|---|
| Also known as | SMBS, Sodium pyrosulphite, Sodium disulphite |
| Grade | Industrial |
| Purity / strength | 97% min Na2S2O5 (assay); SO2 ~65% min (typical) |
| CAS number | 7681-57-4 |
| HSN code | 28321030 |
| Packing | 500 g, 1 kg, 5 kg, 25 kg |
Typical values for reference only, not a guaranteed specification. Exact values vary by batch and manufacturer.
Applications & industries
- Ro dechlorination
- Oxygen scavenging
- Textile anti-chlor
- Pulp and paper
- Leather processing
- Photography
Industries: Water treatment
Storage & handling
Moisture and air slowly oxidise it to sulphate and release SO2.
Keep away from acids and oxidisers.
Safety & first aid
PPE: Chemical goggles, nitrile gloves, dust mask/respirator; use with good ventilation.
First aid: Eyes – rinse immediately with water for 15 min and get medical help; Skin – wash with plenty of water; Inhalation – move to fresh air, get medical help if breathing is difficult; Ingestion – rinse mouth, drink water, get medical help
Spills: Sweep or vacuum up avoiding dust; collect in a labelled container; rinse residue with water.
Do not mix with: Acids (releases SO2 gas), oxidisers, chlorine bleach / hypochlorite concentrates, nitrites.
Technical support & disclaimer
For usage, dosage, or formulation guidance, email info@cleansol.in or WhatsApp +91 98290 05860.
Specifications are typical values for reference only. Users must verify suitability and comply with applicable regulations before use. This product is intended for professional and commercial use; the buyer is responsible for safe handling, storage and disposal. Cleansol assumes no liability for misuse.

