Sodium Bisulphite Powder — Vadodara Stock
Sodium bisulphite powder in food and industrial grades as named on RFQ. Bags from Vadsar with batch COA and MSDS.
Quote in 4 business hours · Exports to UAE, Bangladesh, Egypt & Africa
Sodium bisulphite supplier — NaHSO₃ reducing / dechlorination chemistry from Drashti Chemicals Vadodara. Closely related to SMBS (metabisulphite) but not identical SO₂ yield per kg — match your last COA. Batch documentation. WhatsApp solution vs solid — no list prices.
Often compared with sodium metabisulphite.
- Chemistry
- NaHSO₃ / bisulphite liquor as quoted
- CAS
- 7631-90-5 typical
- Use
- Dechlorination · reducing baths
- Vs
- SMBS higher dry SO₂ / kg
Say liquid vs powder and free-chlorine residual target so dose math matches the salt you stock. Request bulk quote.
Quick Facts
Quote depends on grade, packaging and MT quantity — share your requirement for a documented offer.
WhatsApp or email quote with COA within 4 business hours

Product Overview
Sodium bisulphite (NaHSO₃, CAS 7631-90-5 family) is a reducing and dechlorination chemical closely related to sodium metabisulphite (SMBS). Drashti Chemicals supplies bisulphite solid or liquor paths from Vadodara. The practical buyer question is SO₂ yield and form — not which marketing synonym appears on an old IndiaMART title.
RO and ETP plants that already dose SMBS should not switch to bisulphite (or the reverse) without recalculating residual chlorine quench. Rough rules of thumb differ per kg; jar or ORP verification on your water still wins. Tell us your current salt and residual target on the RFQ.
Aqueous solutions oxidise in air and lose strength — size inventory to short cycles and keep containers sealed. Solid packs need dry storage away from oxidisers and acids.
Documentation: batch COA + MSDS, GST invoice from Vadodara. We are a stockist. WhatsApp form (liquid/solid), monthly kg and duty — no list prices.
See also sodium metabisulphite for the higher dry-SO₂ path and sodium thiosulphate when your programme uses thiosulphate quench instead. Pick one chemistry per dosing pump.
Key Specifications
| CAS Number | 7631-90-5 |
|---|---|
| Chemical Formula | NaHSO₃ (solid or liquor as quoted) |
| Appearance | White solid or clear-to-yellow liquor |
| Purity / Assay | SO₂ equivalent on COA |
| HS Code | 28321020 typical |
| Available Grades | Industrial solid; Industrial liquor |
| Packaging Options | 25 kg bags; Carboys / drums (liquor) |
| Chemical Name | Sodium Bisulphite |
| Minimum Order | 100 Kilograms |
| Shelf Life | As per COA / manufacturer guidelines |
Common Industrial Applications
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Applications
Why Buy SODIUM BISULPHITE from Drashti Chemicals?
- Batch COA & MSDS with every lot — no exceptions
- Consistent quality verified against each shipment
- Pan-India delivery: Gujarat, Maharashtra, Rajasthan & beyond
- Export supply to UAE, Bangladesh, Egypt, Kenya, Malaysia (FOB Mundra)
- GST-compliant invoicing + export documentation (commercial invoice, packing list)
- WhatsApp quote within 4 business hours from Vadodara warehouse
Export Availability
Drashti Chemicals supplies SODIUM BISULPHITE for international export from Gujarat. We handle container-load and LCL shipments (HS code 28321020 typical) via FOB Mundra / Nhava Sheva. Minimum export order from 2 MT. Documentation includes commercial invoice, packing list, COA and MSDS per lot. Active export markets include UAE, Bangladesh, Egypt, Kenya, South Africa and South-East Asia.
To get an export quote, share your destination country, quantity and required grade via WhatsApp or the RFQ form above.
Frequently Asked Questions
Do you supply sodium bisulphite in Vadodara?
Yes. NaHSO₃ solid or liquor as quoted from Vadodara with COA. Share form on WhatsApp.
Bisulphite vs metabisulphite (SMBS)?
Related SO₂ chemistry. SMBS usually gives more SO₂ per kg dry product; bisulphite may be preferred as ready liquor. Match your last dose sheet — we stock both paths.
Dechlorination use?
Yes for RO/ETP dechlorination programmes — share free-chlorine residual and whether you already run SMBS.
Shelf life of solutions?
Aqueous bisulphite oxidises in air — size inventory tightly and keep sealed.
Are you a manufacturer?
Supplier/stockist with documented lots.
How do I buy SODIUM BISULPHITE in bulk from Gujarat?
Share grade, quantity and delivery city with Drashti Chemicals, Vadodara. MOQ typically 100 Kilograms. You get GST invoice, COA + MSDS and a documented quote within 24 hours — WhatsApp or RFQ form.
Packaging Details
- MOQ: 100 Kilograms
- 25 kg HDPE bags / drums
- 50 kg & 200 kg packaging
- Bulk tanker & ISO tank supply (on request)
Technical Information
- CAS: 7631-90-5
- Grade: Industrial, Food, Technical
- Form: Solid
- Purity: 96% min
- Formula: NaHSO3
- Chemical name: Sodium Bisulphite
- Density 1.48 g/cm3; MW 104.06; IS:248 standard
Technical Documents — Batch COA & MSDS
Procurement managers can request batch Certificate of Analysis (COA) and Safety Data Sheet (MSDS). Share your business email / WhatsApp — we send documents within 4 business hours.
WhatsApp or email quote with COA within 4 business hours