Fast, Safe Delivery
90% of orders are delivered
next-day by ADR-approved couriers
Quality Accredited
Accredited to ISO 9001, ISO 14001,
ISO 13485 and ISO 45001
Free Support
Free pre- and post-sales technical support from our expert team
Why Buy Caustic Soda 20% w/v Online from UK Chemical Suppliers, ReAgent Chemicals?
ReAgent can supply caustic soda in a 20% w/v solution in 1L, 2.5L and 25L containers. Please contact us for a quote. This solution is made according to very strict conditions, typically ranging between 19.7% and 20.3%. Further details can be found in the Sales Product Specification available online.Physical and Chemical Properties of Caustic Soda
- Chemical formula: NaOH
- Molecular weight: 39.99 g/mol
- Other names: Sodium hydroxide, soda lye or white caustic
- Form: White crystals, usually sold in pellets, flakes or granular form.
- Odour: odourless
- Colour: As a solid, it forms white crystals, but in solution it’s colourless
- Solubility: Caustic soda is highly soluble in water, only slightly soluble in alcohol and insoluble in non-polar solvents
- Relative density: 1.186 ( at 20 degree Celsius)
- Boiling point: 1388 degree Celsius
- Melting point: 232 degree Celsius
- Corrosivity: highly corrosive to metals, including aluminium, zinc and tin
- pH: Highly alkaline solution, ranging from pH 12 in a 0.05% to pH 14 in a 5% solution
- Reaction with air: It can rapidly absorb water and carbon dioxide from air
- Chemical stability: Not stable if in contact with air, as it can form carbonates by reacting with carbon dioxide
- Highly hygroscopic
- Exothermic reactions: the dissolution of caustic soda in water or with acids and organic halogens is highly exothermic and as such, it releases a significant amount of heat. For safety reasons, this should be taken into consideration when preparing these solutions
Wide Choice of Products
ReAgent can offer a wide range of soda caustic products, including in pellets or solution, as well as different concentrations in ready-made solutions. Simply contact us for a quote or free technical advice, and a member of our customer service team will be glad to help.Please note: we only deliver to registered UK businesses at non-residential addresses with a minimum order value of £100 before VAT
We only supply to mainland UK, contact us on 0800 9555 798 for rates to Ireland.Please notify us if you have specific delivery requirements such as restricted access, requirement for a tail-lift delivery vehicle or pallet truck. Failure to notify us of a special delivery instructions can incur additional charges from our carriers.Need Bespoke Chemicals?
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Caustic Soda 20% w/v Specification
Caustic Soda 20% w/v Hazards
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Caustic Soda 20% w/v Safety & Storage
Caustic Soda 20% w/v Delivery
Delivery FAQs
How do you calculate your delivery costs?
As many of the chemicals we supply are hazardous, we are legally obligated to use ADR licensed couriers who are specialists in carrying such goods. These specialist couriers cost more than regular delivery services, but your order will arrive safely and legally.
What is an ADR courier?
An ADR courier is specially trained and licensed to carry chemicals that are classed as hazardous for transport.
Can I collect my items from your warehouse?
Yes, but please contact us to prearrange this. Depending on the quantity of hazardous chemicals you want to collect, you may need to have applicable training or a current ADR licence to legally transport them away from our premises. We may not able to release goods without proof of this.
Can you deliver directly to my customers?
Yes, we can deliver directly to your customers with a delivery note that excludes invoice details, and we can add your logo and branding to the product labels. Contact us for more information.
How do I find out the delivery cost for my order?
If you want to find the exact delivery charge for an item or order, simply add the item or items you’re interested in to your basket and the delivery charge as well as any VAT will be calculated and itemised for you. No card details are taken at this point so you’re under no obligation to make a purchase.
How long does delivery take?
Firm delivery date within 24 hours. We always dispatch orders as soon as possible but please note that non-stock items can take around 5 days to reach you. Please contact us before ordering if you require an estimated delivery date or see our delivery information for more information.
Do you deliver on bank holidays?
Unfortunately not, our couriers only deliver on working days from Monday to Friday.
Can you ship to locations outside of mainland UK?
We cannot accept overseas orders on our website, however in some cases we are able to ship outside of mainland UK. Please contact us for further information.
Can I have a timed delivery slot?
We can offer an AM delivery service for some regions of the UK, please contact us for information before placing your order.
Caustic Soda 20% w/v FAQs
Do you offer discounts for bulk purchases of caustic soda?
Yes, we offer bulk discounts for caustic soda. Bulk discounts are automatically applied to orders placed online, or you can contact our sales team for bulk purchase pricing.Is caustic soda available in powder form?
No. We supply caustic soda in pearls and pellets. Pearls are smaller grains of 1-2 mm in diameter. Pellets are larger, at 4-5mm in diameter.What are the current availability and lead times for caustic soda?
Almost 90% of our orders are delivered next-day by ADR-approved couriers. Delivery times may vary depending on your location and order size. Please contact our sales team on 0800 9555 798 for your estimated delivery time.What are your delivery options for caustic soda?
We can supply caustic soda by road or sea freight, or you can collect your order from our manufacturing facility in Runcorn, Cheshire.Can you ship caustic soda internationally?
Yes, we can ship caustic soda internationally. It is classed as hazardous and needs to be packaged and shipped accordingly.
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