ion exchange

noun

Definition of ion exchange

: a reversible interchange of one kind of ion present on an insoluble solid with another of like charge present in a solution surrounding the solid with the reaction being used especially for softening or demineralizing water, the purification of chemicals, or the separation of substances

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Other Words from ion exchange

ion exchanger noun

Examples of ion exchange in a Sentence

Recent Examples on the Web The technology the pilot plant will use to separate and concentrate rare earth elements is called ion exchange and continuous ion chromatography. Aldo Svaldi, The Denver Post, "A new Wheat Ridge plant will process rare earths, which aren’t so rare but are critical for iPhones and electric cars," 12 Jan. 2020 Lilac, which announced the investment this week, says its ion exchange technology is twice as efficient as the current mining process and takes a fraction of the time. Max De Haldevang, Quartz, "A Bill Gates-led fund is pumping millions into “game changer” lithium mining technology," 21 Feb. 2020 Because the skin-irritating minerals are passed through the water via ion exchange, the water then becomes soft and can potentially be less irritating to the skin. Kaleigh Fasanella, Allure, "My Skin Got Hives Every Time I Showered — Until I Discovered a Water Softener," 25 Sep. 2018 Inside are arrays of seven-foot tall stainless steel tubes, filled with sand grain-like particles that perform a process called ion exchange. Vince Beiser, WIRED, "Fukushima’s Other Big Problem: A Million Tons of Radioactive Water," 27 Apr. 2018 This results in a process called ion exchange, in which sodium ions within the glass are forced out and replaced by potassium ions from the bathing solution. The Economist, "One of the world’s oldest products faces the digital future," 12 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ion exchange.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of ion exchange

1923, in the meaning defined above

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Time Traveler for ion exchange

Time Traveler

The first known use of ion exchange was in 1923

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Statistics for ion exchange

Cite this Entry

“Ion exchange.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ion%20exchange. Accessed 28 Oct. 2020.

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More Definitions for ion exchange

ion exchange

noun
ion ex·​change | \ -iks-ˈchānj How to pronounce ion exchange (audio) \

Medical Definition of ion exchange

: a reversible interchange of one kind of ion present on an insoluble solid with another of like charge present in a solution surrounding the solid with the reaction being used especially for softening or demineralizing water, purifying chemicals, or separating substances

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