What Is Deionized Water?

Main Content Starts Here

What Is Deionized Water? 

Deionized water is water that has had most of its dissolved mineral ions removed, includingcommon ones like sodium, calcium, iron, copper, chloride, and sulfate. This is achieved througha process called ion exchange, where both positively and negatively charged ions areeliminated. If you need a quick chemistry refresher: ions are atoms with an electrical charge;positive ions have more protons than electrons, and negative ions have more electrons thanprotons.

By stripping away these ions, the resulting water becomes highly pure and non-conductive,making it ideal for specialized uses such as laboratory experiments, industrial processes, andelectronic manufacturing.

We are water Experts

Water quality is non-negotiable. To prove it, we've built state-of-the-art water quality labs and filled them with the best and brightest scientists — all so we can provide you with the best water of your life.

water lab illustration

What's in your water?
start here

Worried about your water? Take control with our at-home water test kit. We'll analyze your water and recommend the best filtration or softening solution for your specific needs.

water test kit
An image of a nice water bubbles background
true

Water 101

Unleash the secrets of your H2O! Explore where water originates and discover the various water filtration solutions that transform it into drinkable water.

Back to top of page