Deionised Water
Synonyms: Deionized Water
£10.35 – £544.10
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
ReAgent Are Leading Deionised Water Suppliers In The UK
Deionised water is the standard grade of water that we supply, and is suitable for most applications. We also offer ultrapure grade water, which undergoes additional testing for applications that require a higher degree of certification. With almost 50 years as experienced chemical manufacturers, and as holders of ISO 9001, ISO 14001, ISO 45001, and ISO 13485 quality accreditations, all of our products are manufactured in accordance with strict quality standards.Specifications of Deionised Water
Deionized water is ‘regular’ water that has had nearly all of its mineral ions removed, including sodium, calcium, copper, iron, and chloride. It’s a type of demineralised water, which is a catch-all term for water that has had its minerals and contaminants removed, whether that’s by deionisation, reverse osmosis, or distillation.Key properties of deionised water include:- Appearance: Clear, colourless liquid
- Conductivity: < 1 μS/cm after purification
- Purification Method: Ion exchange, UV sterilisation, and 0.2-micron filtration
- Grades Available: Standard DI water and ultrapure grade
- Packaging Options: 25L containers, 1000L IBCs, and bulk tankers
Uses of Deionised Water
Often abbreviated as DI, deionized water is used for a range of applications. Most commonly, it is used in laboratory and pharmaceutical environments to prepare chemicals and mixtures. Deionised water is also used to test certain substances for specific compounds. DI water is also used in:- Acid and alkaline batteries
- Pressure testing new installations, such as oil and gas pipelines
- Large scale heating and cooling systems
- Flushing and topping up car cooling systems
- Household detergents
- Perfumes and other cosmetics
Production & Testing of Our Deionised Water
Deionised water is the standard quality water or general used grade that we produce. For many of the chemical solutions and chemical reagents we manufacture, we tend to use pharmacopoeia grade water (either USP purified water, USP water for injection, or EP purified water). ReAgent manufactures DI water using a twin-bed ion exchange process with both anionic and cationic resins to strip impurities. After purification, the water achieves an electrical conductivity of less than 1 μS/cm, outperforming traditional distilled water.For applications requiring ultrapure standards, we add further purification steps, including UV sterilisation and 0.2-micron filtration, which remove trace particles and bacteria. This ensures the highest level of purity.ReAgent’s Quality Assurances
When you buy deionised water from ReAgent, you’re choosing a supplier with nearly 50 years of chemical manufacturing expertise and a commitment to uncompromising quality. Our accreditations include:- ISO 9001:2015 – Quality Management Standard
- ISO 14001:2015 – Environmental Management Standard
- ISO 13485:2016 – Medical Device QMS Standard
- ISO 45001:2018 – Health & Safety Management Standard
Why Choose ReAgent for Deionised Water?
With a proven track record in chemical manufacturing and distribution, ReAgent is one of the UK’s most trusted suppliers of deionised water. Choosing us means you’ll benefit from:- Standard or ultrapure grade options
- Bulk supply with flexible pack sizes
- Bespoke packaging and private labelling
- Fast, reliable nationwide delivery via licensed ADR couriers
- Expert support from a dedicated technical team
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?
Watch this video to find out how ReAgent can help
Deionised Water Specification
Deionised Water Hazards
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Deionised Water Safety & Storage
Deionised Water Delivery
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.
Deionised Water FAQs
How do I store and handle deionized water safely?
Store deionized water in a sealed container, away from direct sunlight, at ambient temperature. Always refer to the SDS for specific storage instructions.Can I purchase deionized water in large quantities?
Yes, we can supply deionized water in large quantities, whether that’s in IBCs, on pallets, or in tankers. Contact us on 0800 9555 798 to discuss your requirements and the bulk purchase discounts we offer.Can I buy different grades of deionized water?
We provide deionised water in a standard grade, designed to meet the needs of most applications. For specific requirements, please contact our team.What are the estimated shipping costs for deionized water?
Shipping costs depend on your delivery location, order size, desired delivery speed, and any additional services like a tail lift. Please contact us for a detailed shipping quote.How is deionised water packaged and transported to ensure quality during shipping?
Our deionised water is securely packaged with tamper-evident seals to maintain quality and ensure safety during transit. If the water ever arrives with an issue, let us know.Who do I contact with questions about buying deionized water?
You can contact our customer service team with any questions you have on 0800 9555 798 or via our contact form.Do you provide after-sale support when I buy deionised water from ReAgent?
Absolutely, our technical support team is available to offer after-sale assistance and address any questions you have post-purchase. You can contact them during business hours of Monday to Friday on 0800 9555 798.
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Popular Chemicals (A-Z)
Can’t find what you need? Call 0800 9555 798 or Contact Us
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