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

Price: £8.65 Incl. VAT
Product Code: SOHY-1561-60
Bulk Discounts:
4 + items
£7.79 Incl. VAT
Quantity: Add to basket
Price: £40.80 Incl. VAT
Product Code: SOHY-2829-64
Bulk Discounts:
4 + items
£36.72 Incl. VAT
Quantity: Add to basket
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Why Buy Caustic Soda Online from UK Chemical Suppliers, ReAgent Chemicals?



ReAgent can supply caustic soda online in 1kg containers and 25kg bags, with discounts available for bulk purchases over 4 items. We also offer further options, such as personalised labelling or different grades. Contact us for further details.



About caustic soda



Caustic soda, also known as sodium hydroxide (NaOH), soda lye or white caustic, is a metallic base extremely caustic, available from ReAgent in multiple forms – including powder, pellets or in solution – and concentrations, ranging from pure to more diluted versions to suit your needs.



In terms of mode of manufacture, there are several ways it can be synthesised:




  • Reaction between calcium hydroxide (Ca(OH)2) and sodium carbonate (Na2CO3)


    Na2CO3 + Ca(OH)2 -> 2 NaOH + CaCO3




  • Electrolysis of sodium chloride (NaCl), producing sodium hydroxide, chlorine and hydrogen


    2NaCl + 2H2O -> 2NaOH + H2 + Cl2




  • Reaction between sodium carbonate and calcium oxide (CaO, also known as quicklime). CaCo3 can be removed after it precipitates, and then the solution undergoes several stages of evaporation to recover sodium hydroxide.


    Na2CO3 + CaO + H2O -> 2NaOH + CaCO3




  • A solution containing sodium salts is mixed with iron(III) oxide (Fe2O3) and subsequently calcinated, to generate sodium ferrite (FeNaO2), which is then decomposed to produce sodium hydroxide and recover the initial Fe2O3. This is known as the ferrite recovery process and is usually used in small paper manufacture plants.


  • Pure forms of solid sodium hydroxide can be obtained simply by evaporation of a sodium hydroxide solution until the water content is minimal (usually accepted values are around 0.5-1.5% wt%)



Wide range of products



Caustic soda has multiple applications, from paper manufacture to industrial cleaning, and as such we’ve developed a wide range of products containing caustic soda to suit your needs. To find out more, simply contact us for a quote or free technical advice.


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