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Inorganic Chemicals

Sodium Metabisulphite — Aethon Chemicals

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Sodium Metabisulphite

Sodium Metabisulphite, CAS 7681-57-4, 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, mining industry, pulp & paper, textile processing. We supply buyers across India and export to 15+ countries, with TDS and MSDS available on request.

Key facts

Chemical NameSodium Metabisulphite
Chemical FormulaNa₂S₂O₅
FormWhite to off-white crystalline powder / granules
GradeIndustrial / Technical Grade
CAS No.7681-57-4
HSN Code28321090
CategoryInorganic Chemicals
Supplied fromAnkleshwar GIDC, Gujarat, India
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Main uses of Sodium Metabisulphite

  • Water Treatment
  • Mining Industry
  • Pulp & Paper
  • Textile Processing
  • Leather Industry
  • Photography
  • Chemical Manufacturing
  • Gas Scrubbing

Product Overview

At Aethon Chemicals, we supply high-quality Sodium Metabisulphite widely used as a preservative, antioxidant, reducing agent, and oxygen scavenger in various industrial processes. It is commonly used in water treatment, effluent dechlorination, textiles, chemicals manufacturing, and leather processing. Due to its strong reducing properties, it is also used in gas scrubbing and mining applications.

We ensure consistent purity, safe packaging, and timely supply for both bulk and industrial-scale requirements.

Chemical & Physical Properties

Parameter

Specification

Chemical Formula

Na₂S₂O₅

Molecular Weight

190.10 g/mol

Appearance

White / off-white crystalline powder

Purity

97% – 99% (Industrial Grade)

Solubility

Soluble in water

pH (10% solution)

Acidic (approx. 4 – 5)

Odor

Pungent sulphur dioxide-like odor

Stability

Sensitive to moisture & air

Applications

  • Water Treatment – Dechlorination and oxygen scavenging

  • Mining Industry – Used in flotation agents & ore separation

  • Pulp & Paper – Bleaching & dechlorination steps

  • Textile Processing – Antioxidant in dye baths

  • Leather Industry – Pickling & preservation agent

  • Photography – Fixing and processing chemical

  • Chemical Manufacturing – Intermediate for sulphite derivatives

  • Gas Scrubbing – Removes dissolved oxygen & oxidizing gases

Handling & Safety

Aspect

Information

Hazards

Releases SO₂ fumes on contact with acids; may irritate eyes & skin

PPE

Use gloves, dust mask, safety goggles & protective clothing

Storage

Store in sealed, moisture-free containers

Spillage

Sweep and collect; prevent dust formation and contact with acids

First Aid

Rinse affected area with water; seek medical help if irritation persists

FAQs

Frequently Asked Questions about Sodium Metabisulphite

Sodium Metabisulphite is used in water treatment, mining industry, pulp & paper, textile processing, leather industry, photography. Aethon Chemicals supplies it in industrial grades for these applications across India and abroad.

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

The price of Sodium Metabisulphite 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: 190.10 g/mol; Solubility: Soluble in water; Appearance: White / off-white crystalline powder. Full specifications are given in the TDS, available on request.

Store in sealed, moisture-free containers. Always follow the storage guidance in the MSDS supplied with each shipment.

Hazards: Releases SO₂ fumes on contact with acids; may irritate eyes & skin. Recommended protection: Use gloves, dust mask, safety goggles & protective clothing. Handle it as described in the MSDS.

Spillage: Sweep and collect; prevent dust formation and contact with acids. First aid: Rinse affected area with water; seek medical help if irritation persists.

The CAS number of Sodium Metabisulphite is 7681-57-4 and its HSN code is 28321090.

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 Metabisulphite to test in your process before placing a bulk order — use the quote or contact form and mention your application.

Yes. We supply Sodium Metabisulphite 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 Metabisulphite in bulk?

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