ion exchange


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Related to ion exchange: Ion exchange chromatography, Ion exchange resin

an·i·on ex·change

(an'ī-on eks-chānj'),
The process by which an anion in a mobile (liquid) phase exchanges with another anion previously bound to a solid, nonmobile, positively charged phase, the latter being an anion exchanger. For example, the process takes place when Cl- is exchanged for OH- in desalting. The reaction is Cl- (in solution) + (OH- on anion exchanger+) → (Cl- on anion exchanger) + OH- (in solution); in combination with the cation exchange, NaCl is removed from solution. Anion exchange may also be used chromatographically, to separate anions, and, medicinally, to remove an anion (for example, Cl-) from gastric contents or bile acids in the intestine.

ion-ex·change chro·ma·tog·ra·phy

(ī'on-eks-chānj' krō'mă-tog'ră-fē)
Chemical investigation in which cations or anions in the mobile phase are separated by electrostatic interactions with the stationary phase.
See also: anion exchange, cation exchange

cat·i·on ex·change

(kat'ī-on eks-chānj')
The process by which a cation in a liquid phase exchanges with another cation present as the counter-ion of a negatively charged solid polymer (cation exchanger). Cation exchange may be used chromatographically, to separate cations, and medicinally, to remove a cation.
See also: anion exchange

an·i·on ex·change

(an'ī-on eks-chānj')
The process by which an anion in a mobile (liquid) phase exchanges with another anion previously bound to a solid, positively charged phase, the latter being an anion exchanger. Anion exchange may also be used chromatographically, to separate anions, and medicinally, to remove an anion (e.g., Cl-) from gastric contents or bile acids in the intestine.

ion exchange

A reversible chemical reaction in which ions in a solution are replaced by others with like charge from an insoluble solid such as an ION EXCHANGE RESIN. The process is used for softening hard water, purifying sugar, separating radioactive isotopes and for other purposes.
References in periodicals archive ?
The length of the ion exchanger was adjusted to 65 mm so that the absolute mole of ion exchange capacity became ~1 x [10.
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The acquisition of Rohm and Haas' ion exchange businesses in April 2009 has allowed Dow to develop a UPS manufacturing technology based on the best practices of both Dow and Rohm and Haas.
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1 the contract is the position of ion exchange chromatography and concentration of samples with the equipment.
Table 4: Top 20 Populated Countries Worldwide (2013)(includes corresponding Graph/Chart) II-7Urbanization & Implications for IER-based Water Treatment Market II-7Table 5: Total Population Worldwide by Urban and RuralPopulation in Thousands: 1950-2050P (includes correspondingGraph/Chart) II-8Table 6: Percentage of Urban Population in Select Countries(2014 & 2050) (includes corresponding Graph/Chart) II-9Select Mega-Urban Regions Worldwide (2035) II-10Emerging Markets Offer Significant Growth Prospects II-10Nuclear Power Stations Deploy Ion Exchange Resins II-10Table 7: Estimated Global Demand for Primary Energy:2015-2035 (includes corresponding Graph/Chart) II-11
Product/Service/Works Keywords: Ion exchange membrance filters
The ion exchange method is one of several possible water treatments being considered to remove perchlorates, a byproduct of rocket fuel, from the site of the old Bermite munitions factory in the heart of Santa Clarita.
com/research/46256f/chinese_markets_fo) has announced the addition of the "Chinese Markets for Ion Exchange Resins" report to their offering.
3) Deioners Speciality, 4) Wex Technologies, 5) Chembond Ashland Water, 6) Vasu Chemicals, 7) Anco India and 8) Ion Exchange.