Ion exchange reactions
Ion Exchange ? Basic Principles

Quizzed article REF: J2783 V2

Ion exchange reactions
Ion Exchange ? Basic Principles

Author : François DE DARDEL

Publication date: November 10, 2015, Review date: September 14, 2020 | Lire en français

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3. Ion exchange reactions

3.1 Cation exchange

3.1.1 General exchange

This process is generally used to remove unwanted ions from a solution without changing the total ionic concentration or pH. The resin can be used in many ionic forms, but in practice the sodium form is almost universally used, due to the resin's relatively low affinity for sodium, which facilitates the binding of other metals, and the low cost of sodium chloride as a regenerant:

R^{-} {Na}^{+} + K^{+} {Cl}^{-} ⇄ R^{-} K^{+} + {Na}^{+} {Cl}^{-}

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Bibliography

(1) - THOMPSON (H.S.) - On the adsorbent power of soils. - J. Royal agric. Soc., Grande-Bretagne, 11, p. 68 (1850).
(2) - WAY (J.T.) - J. Royal Agric. Soc., Grande-Bretagne, 11, p. 313 (1850).
(3)...

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