Caustic Soda

This is our most popular Caustic Soda – Caustic Soda Pearl (General Use)

Caustic Soda Pearl (General Use)

From: £17.62

From: £17.62


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Looking for further options on this product?

  • Custom packaging
  • Personalised labelling
  • Specific pack sizes
  • Bespoke blending
  • Bulk quantities
  • Different grades available

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  • Product Information
  • Specification
  • Hazard Information
  • Precautionary
  • Shipping Statements
  • MSDS


Buy Caustic Soda Pearl from ReAgent

We supply Caustic soda in pearls for general use in 1kg containers and 25 kg bags. This product is characterised by a 96% minimum purity and maximum impurity levels of 2% carbonate, 0.01% chloride and 0.1% sulphate.

Full Sales Product Specification available to download from the website. We also offer further options with all our products, such as customised labelling or specific pack sizes. Contact us for further details.

Current Method of Industrial Synthesis

Nowadays, caustic soda – also known as sodium hydroxide (NaOH) – is traditionally synthesised via the chloralkali process (electrolytic reaction). Pure sodium hydroxide is obtained after removal of by-product chlorine gas. Following a final evaporation step, caustic soda is sold in flakes, pearls or powder.

The chloralkali method is used by most large companies, but other reactions have been used in the past. The first large-scale method to produce caustic soda involved a reaction between insoluble sodium carbonate (Na2CO3) and soluble calcium hydroxide (Ca(OH)2). This procedure was known as causticizing. In chemical terms, this type of reaction is called a metathesis reaction, involving a double replacement.

Ca(OH)2(aq) Na2CO3(s) → CaCO3↓ 2NaOH(aq)

Caustic soda can be produced by many other methods, most of which not commercially viable and only used in an academic setting to demonstrate certain properties to students. One example is the reaction with sodium metal and water, producing caustic soda and hydrogen gas, which is used to show how reactive alkali metals are.

Important Safety Information

Caustic Soda causes severe skin burns and eye damage so please take great care when handling it. We recommend wearing appropriate personal protective equipment including gloves, safety glasses and overalls when handling this product, even if still sealed in its original packaging.

Please refer to the MSDS for detailed safety and precautionary information before handling Caustic Soda.

Over 40 Years’ Experience

Established over 40 years ago, ReAgent has built an enviable reputation for high-quality products and excellent customer services. We have a wide range of caustic soda products, including different concentrations and grades, to suit all your needs. Please contact us for a quote or technical question.




MSDS Files

The following files are available to download:

Product IDProductpost_statusBulkDownload SDS File
3725Caustic Soda Pearl (General Use)publish1561 - 1561 - SDS20465.pdf

Our most popular product is displayed above. Other variants of this product are displayed below.

About Caustic Soda

Caustic soda is a highly caustic metallic base and alkali salt. It appears as a white solid and is also referred to as sodium hydroxide, soda lyre or white caustic.

At ReAgent, you can buy caustic soda in a range of concentrations. Caustic soda pearls are also for sale in our online shop, where discounts are available on bulk orders.

Properties and Uses

Caustic soda is used in many industries, primarily as a neutraliser of acid in water treatment and in industrial cleaning. It is also used in the manufacturing of textiles and paper, as well as a cleaning agent in soaps and detergents.

  • Appearance: Solid
  • Formula: NaOH
  • MW: 39.997
  • Melting point: 318 (degrees Celcius)
  • Density: 2.13 g/cm3
  • CAS no.: 1310-73-2

Caustic Soda Suppliers in the UK

ReAgent is a well-renowned manufacturer of caustic soda in the UK, providing the chemical in a variety of forms including powder, pellets and solution. Our concentrations range from pure to configurable dilutions to suit your needs, and can be dispatched in either 1kg containers or 25kg bags.

Should you require an alternative batch size, please get in touch with us so we can cater to your bespoke requirements. We also offer further options, such as personalised labelling or alternative grades.

Caustic Soda Safety Precautions

Caustic soda is very damaging to human skin, causing severe skin burns and eye damage on contact. Special care should be taken when handling this hazardous chemical, and we strongly recommend wearing appropriate protective clothing such as glovessafety glasses and overalls, even if it is still sealed in its original packaging.

For a full breakdown of caustic soda’s hazards, risks and guidelines for use, please refer to the caustic soda MSDS for detailed safety information before handling.
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