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ion-exchange resin

   Also found in: Acronyms, Encyclopedia, Wikipedia 0.01 sec.
ion-exchange resin
n.
An insoluble polymer containing charged groups or ions that can be exchanged for charged groups or ions present in a surrounding solution.

ion-exchange resin
a high-molecular-weight, insoluble polymer of simple organic compounds with the ability to exchange its attached ions for other ions in the surrounding medium. They are classified as cation- or anion-exchange resins, depending on which ions the resin exchanges. Cation-exchange resins are used to restrict sodium absorption in edematous states; anion-exchange resins are used as antacids in the treatment of ulcers. Ion-exchange resins may also be classified as carboxylic, sulfonic, etc., depending on the nature of the active groups. Used in biochemical extractions and purifications.


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In some of these reported methods, silica particles are produced by passing sodium silicate through ion-exchange resin and subsequent surface modification using trimethylchlorosilane, after exchanging the aqueous solution with organic solvent.
He and his contributors cover all aspects of the technology, farming and processing and describes quality control, ion-exchange resin, the juice-softening and molasses-softening processes, the intricacies of refining raw cane sugar in a beet-sugar factory, environmental considerations of factories, the work of the sugar laboratory and method of analysis, and the basics of science related to sugar technology.
But Shapley says the catalyst could be used to remove the perchlorate from the brine left over after the regeneration of used ion-exchange resins.
 
 
 
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