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Anhydrous Sodium Sulphite

Anhydrous Sodium Sulfite

Anhydrous Sodium Sulphite

At a glance

  • FormulaNa₂SO₃
  • CAS No.7757-83-7
  • Also known assodium sulphite (anhydrous)
  • Common specificationsIndustrial and food grade
  • Packaging25kg、1000kg
  • Minimum orderFrom one bag; samples available

※ Need specific data, a batch inspection report or a sample? Call us and it will be arranged; quotations are given the same day.

Product overview

Anhydrous sodium sulphite is a white powder with reducing properties, commonly used in textile bleaching, paper making and boiler-water oxygen scavenging; the food grade is used in food processing and food additives under stricter limits on heavy metals. It oxidises readily in air, so store it sealed against moisture.

Specifications

※ The above are examples of common specifications; specific data, content and packaging are subject to mutual confirmation.

Main uses

Textile bleaching, reducing agent in paper making, oxygen scavenging in water treatment, photographic materials, leather making.

Buying notes

Please distinguish this from sodium bisulphite: similar in use but different in active content and alkalinity, so state the exact product name when ordering. For food applications tell us clearly and we supply food grade.

Storage and transport

Safety notes

FAQ

What is the difference from sodium bisulphite?

Similar in use but different in active content and alkalinity: write the exact product name on the order to avoid the wrong goods.

How should it be stored?

Sealed, moisture-proof, away from lightstorage; the product oxidises readily in air, so try to use it up once opened.

Can I buy just one bag? Can I get a sample first?

From one bag; you canSamplesconfirmed.

How do we tell it from sodium bisulphite?

The two are similar in use but different in nature: anhydrous sodium sulphite is mostly used for bleaching, dechlorination, reduction and oxygen scavenging, while sodium bisulphite is mostly used for oxygen scavenging in water treatment and reduction in printing and dyeing. Stating the application when ordering is safer.

How soon can you ship?

In-stock orders are arranged the same day, normally dispatched within 24–48 hours and shipped within a week; tell us if it is urgent.

What should we watch for in storage?

Keep sealed, out of light and away from moisture; do not store with strong oxidising agents or acids, and use soon after opening.

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