While both distilled and deionized water are both forms of very pure water, they are produced using distinctly different methods. Depending on the water source, distilled water could be purer than deionized water. However, that doesn’t necessarily mean distilled water is better than deionized water. Each method has advantages and disadvantages, and the ultimate choice depends upon factors like cost and intended use.
During the water distillation process, water is boiled which causes steam to form. The steam is collected in a separate container where it is allowed to reform as a liquid. Water distillation offers an effective way to remove solids, such as minerals, bacteria, and other organic compounds, making it an excellent method for purifying water systems and tap water.
Distilled water is the most common form of purified water and is often confused with deionized water. While both forms of water are safe to drink, deionized water is the purest of the two. However, distilled water is capable of conducting electricity, making it ideal for applications such as laboratory experiments. Its purity also makes it suitable for sterilizing medical equipment and for use in cosmetic products.
Water deionization involves an ion exchange process that works to remove solid materials from water. During the process, untreated water flows through two oppositely charged resin beds. As this occurs, electrically charged ions are removed, leaving only hydrogen and oxygen molecules behind. The result is highly purified water that is ideal for applications requiring extreme water purity, such as automotive, pharmaceutical, biochemistry, immersion cooling, and more.
Deionized water does not contain charged ions, meaning it is resistant to electricity. This makes it the preferred form of water in many instances. For example, many machining and other processes involving high temperatures benefit from deionized water’s low electrical conductivity, as it helps to lower temperatures during manufacturing.
Water deionization offers an effective, cost-efficient, and consistent method for purifying water systems.
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We understand that it is not always easy to get quick answers when researching water purification systems. With a vast amount of information on the internet, it can be overwhelming to know where to start. Hopefully, you now have the essential information to understand the distinctions between distilled and deionized water to help you determine which method may be right for your needs.
Since 1948, Reynolds Culligan has been the only water treatment company in the Mid Atlantic that offers a comprehensive, single-source water treatment technology platform that works for virtually any industry and application. We are proud to offer cost-effective solutions for residential, commercial, and industrial applications, with a modular platform that allows our customers to customize our solutions to their specific needs.
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