
Ultrapure Water
£15.37 – £1,015.38

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 Ultrapure Water from Trusted UK Suppliers?
We are dedicated ultrapure water suppliers with almost 50 years of chemical manufacturing experience. ReAgent is able to provide ultrapure water in a range of pack sizes, including 5 litres, 25 litres, and 1,000 litre IBCs (intermediate bulk containers). All of our products come with a full Certificate of Analysis and we only ever manufacture in accordance with strict health and safety regulations, as well as packing and transport requirements.If you’d like to buy ultrapure water from us today, simply fill out the contact form below or get in touch via phone, email, or fax. As well as the above batch sizes, we also strive to accommodate bespoke orders, so whatever your requirements, please don’t hesitate to get in touch.Ultrapure Water Specifications
- Appearance: Liquid
- Formula: H2O
- pH: 5-8
- Resistivity: 1/Conductivity Mohms
- CAS No.: 7732-18-5
What is Ultra Pure Water?
Ultrapure water is a high quality grade of water widely used in engineering applications and laboratory testing. Although it is produced in a similar way to deionised and demineralised water, ultrapure water retains some features that make it distinct from these products.Popular uses of ultrapure water include:- Research and testing in a range of laboratory environments
- Cleaning medical and healthcare equipment
- Diagnostic clinical analysis and testing
- Production of semiconductors
Watch Our Ultra Pure Water Video
How can we help you? Watch this short video to find out
Ultrapure Water Production & Testing
As quality-assured chemical manufacturers, our ultrapure water is produced using a system that starts with an organic trap to remove any organic matter. This is followed by a twin-bed deioniser to remove cations and anions, along with a mixed-bed resin to further reduce contaminants.The resulting water is of an extremely high standard which we know as deionised or demineralised water. This then undergoes further testing to a higher specification, before being sold as ultrapure water.Owing to customer demand, ReAgent now tests its ultrapure water to a higher specification than our deionised and demineralised water. Testing for ultrapure water now includes:- Conductivity testing to less than 0.05 microsiemens when packed
- Chloride testing to less than 1 ppm
- pH testing
- Total chlorine testing
- Free chlorine testing
- Nitrate testing
- Nitrite testing
ReAgent Are Ultrapure Water Suppliers
If you’re looking to buy ultrapure water, look no further than ReAgent, one of the UK’s leading ultrapure water suppliers. All of our manufacturing processes are aligned with strict quality management systems, shown in our accreditations to the ISO 9001, ISO 14001, ISO 45001, and ISO 13485 quality standards. Backed by nearly 50 years of expertise, we can help with any and all of your ultrapure water needs, no matter the quantity or bespoke requirements. Buy ultrapure water today with zero compromise, or call one of our experts to see exactly what we can do for you.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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Ultrapure Water Specification
| Description | Limits | Units |
|---|---|---|
| H₂O | M.W. 18.01 | |
| Conductivity | <0.2µs/cm | (When packed but will increase on storage) |
| Chloride | <1 | ppm |
| pH | 5 - 8 | |
| Total Chlorine | <0.5 | ppm |
| Free Chlorine | <0.5 | ppm |
| Nitrate NO3 | <0.5 | ppm |
| Nitrite NO2 | <0.15 | ppm |
| Resistivity | 5 - 19 | Mohms |
Ultrapure Water Hazards
| Signal Word |
|---|
| BulkCode | Hazard Statement | Description |
|---|---|---|
| 1232 | NC | Not Classified |
Ultrapure Water Safety & Storage
| BulkCode | Precautionary Statement | Description |
|---|
Ultrapure Water Delivery
| ProductNumber | Shipping Statement | Description |
|---|---|---|
| 1.232 | CAS Number | 7732-18-5 |
| 1.232 | EC Number | 231-791-2 |
| 1.232 | ADR/RID Shipping Name | Not classified |

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.
Ultrapure Water FAQs
How can I request a quotation for ultrapure water in bulk quantities?
Bulk orders can be made online with discounts applied during checkout, or you can enquire about bulk discounts by calling our team on 0800 9555 798.What information do I need to provide to receive an accurate quote?
We need to know the quantity required, pack size, and delivery location, which must be a business address.Can you provide ultrapure water that meets specific standards?
We supply ASTM Type IV water.How does ultrapure water compare to deionised or distilled water in terms of purity?
All grades of water supplied by ReAgent are very pure; the difference lies in the specific impurity analysis carried out based on the grade being produced.What are the delivery options?
Delivery options include road, sea, and air. You can also collect from ReAgent.Can ultrapure water be supplied in specific volumes or containers, such as IBCs?
Yes, we can supply ultrapure water in specific volumes and containers, including IBCs.Is ongoing or scheduled delivery available for regular ultrapure water needs?
Yes, we have many customers with regular scheduled deliveries for ultrapure water.What are the best practices for storing and handling ultrapure water to maintain its purity?
Ultrapure water should be kept in its original sales container, tightly sealed, and out of direct sunlight.What are the main differences between ultrapure water and other forms of purified water?
The main difference lies in the specific testing carried out to ensure compliance with the specified grade.How can I obtain the Material Safety Data Sheet (MSDS) for your ultrapure water?
Do you provide Certificates of Analysis?
Yes, we can provide Certificates of Analysis on request.Can I collect my order of ultrapure water from you?
Yes, customers can arrange to collect ultrapure water. Our sales team can assist with this.How can I contact customer support for more specific inquiries about ultrapure water?
You can call customer support on 0800 9555 798.
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