ion exchange



the process of reciprocal transfer of ions between a solution and a resin or other suitable solid.

Nearby words

  1. iolanthe,
  2. iolite,
  3. iom,
  4. ion,
  5. ion engine,
  6. ion exchanger,
  7. ion generator,
  8. ion implantation,
  9. ion propulsion,
  10. ion rocket

Origin of ion exchange

First recorded in 1920–25 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ion exchange

  • He reached hastily for water and found the tall plastic column of the ion-exchange apparatus empty.

    The Syndic|C.M. Kornbluth

British Dictionary definitions for ion exchange

ion exchange


the process in which ions are exchanged between a solution and an insoluble solid, usually a resin. It is used to soften water, to separate radioactive isotopes, and to purify certain industrial chemicals
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for ion exchange

ion exchange


A reversible chemical reaction occurring between an insoluble solid and a solution during which ions may be interchanged, used in the separation of radioactive isotopes.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for ion exchange

ion exchange

A reversible chemical reaction between two substances (usually a relatively insoluble solid and a solution) during which ions of equal charge may be interchanged. Ion exchange is used in water softening and purification, chemical analysis, the separation of radioactive isotopes, and kidney dialysis.Cation exchange is the exchange of positively charged ions.Anion exchange is the exchange of negatively charged ions.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.