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.
Maximum Limits of Impurities
Hazard Statement Code
Causes severe skin burns and eye damage.
May be corrosive to metals.
Precautionary Statement Code
Do not breathe vapour/ spray.
Wear protective gloves/ protective clothing/ eye protection/ face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Immediately call a POISON CENTER/ doctor.
Dispose of contents/ container in accordance with local regulations.
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.
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 gloves, safety glasses and overalls, even if it is still sealed in its original packaging.
For a full breakdown of caustic sodas hazards, risks and guidelines for use, please refer to the caustic soda MSDS for detailed safety information before handling.