Purified water - Wikipedia
2021-8-24 · Deionized water (DI water, DIW or de-ionized water), often synonymous with demineralized water / DM water, is water that has had almost all of its mineral ions removed, such as cations like sodium, calcium, iron, and copper, and anions such as chloride and sulfate.Deionization is a chemical process that uses specially manufactured ion-exchange resins, which exchange hydrogen and …
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