Deionized Water

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Fast, Safe Delivery

90% of orders are delivered next-day by approved couriers

Quality Production

Custom formulation, blending, and packaging for your needs

Free Support

Free pre- and post-sales support from our expert team

Fast, Safe Delivery

90% of orders are delivered next-day by approved couriers

Quality-First Production

Custom formulation, blending, and packaging for your needs

Free Support

Free pre- and post-sales support from our expert team

Leading Deionized Water Suppliers in the USA

ReAgent is a multinational company with almost 50 years of chemical manufacturing experience. All of our products are made in accordance with strict quality standards.

Deionized water is the standard grade of water we supply, and is suitable for most applications.

Uses of Deionized Water

Often abbreviated as DI, deionized water is used for a range of applications. Most commonly, it’s used in laboratory and pharmaceutical environments to prepare chemicals and mixtures. Deionized 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

Why Choose ReAgent for Deionized Water?

With a proven track record in chemical manufacturing and distribution, ReAgent is one of the most trusted suppliers of deionized water.

Choosing us means you’ll benefit from:

  • Standard grade options
  • Bulk supply with flexible pack sizes
  • Custom packaging and private labeling
  • Fast, reliable nationwide delivery via licensed couriers
  • Expert support from a dedicated technical team

Whether you need a small order for laboratory use or bulk supply for industrial applications, ReAgent can meet your exact requirements with quality, speed, and consistency guaranteed. Contact us to discuss your requirements or get a custom quote.

Need Custom Chemicals?

Testing chemicals in the lab

Watch this video to find out how ReAgent can help

Shirley testing products in the ReAgent lab

At ReAgent, we manufacture, pack, and blend chemical products for companies across many different industries. Our services include:

Class 7 cleanrooms

Deionized Water Specification

Item Specification
Conductivity (25°C) <5 μS/cm
Resistivity (25°C) >0.2 Mohm/cm
Sodium <50 ppb
Chloride <50 ppb
Conforms to ASTM D1193 type IV

Typical Deionized Water Analysis

  • pH: 5.6
  • Conductivity µS/cm: 0.3
  • Resistivity Mohms: 3.33
  • TVC cfu/ml: N/A
  • TVC cfu/100ml: N/A
  • TOC (mg/L): <0.1
  • Nitrate (mg/L): Not Detected
  • Nitrite (mg/L): Not Detected
  • Chlorine (mg/L): Not Detected
  • Free Chlorine (mg/L): Not Detected
  • Oxidisable Substances EP/USP: Pass
  • Oxidisable Matter (mg/L): <0.4
  • Chloride (mg/L): <1
  • Sulphate (mg/L): <0.1
  • Fluoride (mg/L): <0.1
  • Residue on evaporation (mg/L): <2
  • Acidity / Alkalinity: Pass
  • Ammonia (mg/L): <0.2
  • Calcium & Magnesium: N/A
  • Silica as SiO2 (mg/L): <0.01
  • Silver (mg/L): <0.001
  • Barium (mg/L): <0.001
  • Beryllium (mg/L): <0.001
  • Chromium (mg/L): <0.003
  • Copper (mg/L): <0.001
  • Iron (mg/L): <0.02
  • Nickel (mg/L): <0.001
  • Lead (mg/L): <0.001
  • Antimony (mg/L): <0.001
  • Selenium (mg/L): <0.001
  • Tin (mg/L): <0.001
  • Vanadium (mg/L): <0.001
  • Zinc (mg/L): <0.001

Typical Analysis, while based on historic data, should only be used for indicative purposes.

For a true analysis of any product please request a Certificate of Analysis.

Deionized Water Hazards

Deionized Water Safety & Storage

Deionized Water SDS

Download our material safety data sheet (MSDS) for technical data and comprehensive information about this product.

[display_single_sds]

Deionized Water Delivery

ReAgent’s Shipping Capabilities

Delivery FAQs

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 tax will be calculated and itemized for you. No card details are taken at this point, so you’re under no obligation to purchase water online.

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 national holidays?

Unfortunately not. Our couriers only deliver on working days from Monday to Friday.

Can you ship to locations outside of mainland US?

We cannot accept overseas orders on our website. However, in some cases, we are able to ship outside the mainland US. Please contact us for further information.

How do you calculate your delivery costs?

As many of the chemicals we supply are hazardous, we are legally obligated to use 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.

Can I have a timed delivery slot?

We can offer an AM delivery service for some counties. Please contact us for information before placing your order.

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 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.

Deionized 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?

Can I buy different grades of deionized water?

What are the estimated shipping costs for deionized water?

How is deionized water packaged and transported to ensure quality during shipping?

Who do I contact with questions about buying deionized water?

Do you provide after-sale support when I buy deionized water from ReAgent?

Browse Our Range of Water

Deionized Water

Demineralized Water

Distilled Water

Can’t find what you need?

Contact our customer service team today.

Browse Our Range of Water

Deionized Water

Demineralized Water

Distilled Water

Can’t find what you need?

Contact our customer service team today.

Deionized Water

Demineralized Water

Distilled Water

Deionized Water