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Inorganic Chemicals

Sodium Bisulphite — Aethon Chemicals

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Sodium Bisulphite

Sodium Bisulphite, CAS 7631-90-5, is supplied in bulk by Aethon Chemicals, a supplier and exporter of industrial chemicals based in Ankleshwar GIDC, Gujarat, India. It is commonly used in water treatment, effluent treatment, pulp & paper, photographic industry. We supply buyers across India and export to 15+ countries, with TDS and MSDS available on request.

Key facts

Chemical NameSodium Bisulphite
Chemical FormulaNaHSO₃
FormWhite to yellowish crystalline powder / granules
GradeIndustrial / Technical Grade
CAS No.7631-90-5
HSN Code28321010
CategoryInorganic Chemicals
Supplied fromAnkleshwar GIDC, Gujarat, India
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Main uses of Sodium Bisulphite

  • Water Treatment
  • Effluent Treatment
  • Pulp & Paper
  • Photographic Industry
  • Leather Tanning
  • Mining & Metal Finishing
  • Chemical Manufacturing
  • Textile Processing

Product Overview

At Aethon Chemicals, we supply high-quality Sodium Bisulphite used across various industrial applications as a reducing agent, preservative, oxygen scavenger, and bleaching assistant. It is widely used in water treatment, food preservatives (non-food grade in this case), effluent neutralization, and chemical manufacturing processes.

Sodium Bisulphite is particularly valued for its ability to remove dissolved oxygen, control oxidation reactions, and act as a sulphur-based antioxidant in multiple process industries.

Chemical & Physical Properties

Parameter

Specification

Chemical Formula

NaHSO₃

Molecular Weight

104.06 g/mol

Appearance

White to yellowish crystalline powder

Purity

58% – 62% (as SO₂) / 95% - 99% (as NaHSO₃)

Solubility

Soluble in water

pH (10% solution)

Acidic (approx. 4 – 5)

Odor

Faint sulphurous odor

Stability

Sensitive to air & moisture

Applications

  • Water Treatment – Oxygen scavenger in boilers & cooling towers

  • Effluent Treatment – Reduces hexavalent chromium & chlorine

  • Pulp & Paper – Bleaching and dechlorination

  • Photographic Industry – Fixing & processing baths

  • Leather Tanning – Reducing agent in beam-house operations

  • Mining & Metal Finishing – Used in ore flotation & surface treatment

  • Chemical Manufacturing – Intermediate for sulphite-based compounds

  • Textile Processing – Anti-oxidizing agent in dyeing operations

Handling & Safety

Aspect

Information

Hazards

Releases SO₂ on contact with acid; may irritate eyes & skin

PPE

Gloves, goggles & dust mask recommended during handling

Storage

Keep in airtight bags/containers; protect from moisture & heat

Spillage

Sweep carefully; avoid contact with acids

First Aid

Rinse skin/eyes with plenty of water; seek help if irritation persists

FAQs

Frequently Asked Questions about Sodium Bisulphite

Sodium Bisulphite is used in water treatment, effluent treatment, pulp & paper, photographic industry, leather tanning, mining & metal finishing. Aethon Chemicals supplies it in industrial grades for these applications across India and abroad.

We supply Sodium Bisulphite as industrial / Technical Grade. Tell us your required grade and specification and we will confirm availability and share the TDS.

The price of Sodium Bisulphite depends on grade, quantity, packaging and destination, and moves with raw-material markets, so we quote per enquiry. Share the product, quantity, grade and destination through our contact form, email or WhatsApp and our team responds within 24 hours with a detailed quote.

The MOQ depends on the product and grade. For bulk industrial chemicals it typically starts from 25 kg or 200-litre drums, while laboratory-grade material may be available in smaller packs. Mention your preferred pack size and quantity in your enquiry.

Molecular Weight: 104.06 g/mol; Solubility: Soluble in water; Appearance: White to yellowish crystalline powder. Full specifications are given in the TDS, available on request.

Keep in airtight bags/containers; protect from moisture & heat. Always follow the storage guidance in the MSDS supplied with each shipment.

Hazards: Releases SO₂ on contact with acid; may irritate eyes & skin. Recommended protection: Gloves, goggles & dust mask recommended during handling. Handle it as described in the MSDS.

Spillage: Sweep carefully; avoid contact with acids. First aid: Rinse skin/eyes with plenty of water; seek help if irritation persists.

The CAS number of Sodium Bisulphite is 7631-90-5 and its HSN code is 28321010.

Yes. Every shipment comes with a Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS), and the Technical Data Sheet (TDS) is available on request. All products go through QA/QC inspection, purity testing and batch validation.

Yes. You can request a sample of Sodium Bisulphite to test in your process before placing a bulk order — use the quote or contact form and mention your application.

Yes. We supply Sodium Bisulphite across India and export to 15+ countries from Ankleshwar GIDC, Gujarat. Payment options include advance payment, Letter of Credit (LC), Documents against Payment (DP) and credit terms for established clients.
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Need Sodium Bisulphite in bulk?

Tell us the grade, quantity and destination — we'll share pricing, TDS and MSDS, usually within 24 hours.

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