cation exchange

noun

Definition of cation exchange

: ion exchange in which one cation (as sodium or hydrogen) is substituted for one or more other cations (as calcium and magnesium in hard water)

called also base exchange

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“Cation exchange.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cation%20exchange. Accessed 12 Aug. 2020.

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