- 1. The amount of exchangeable ions measured in moles of ion change per kilogram of solid material at a given pH. Synonymous with ion exchange capacity .2. The total ionic charge of the adsorption complex active in the adsorption of ions .See also cation exchange capacity.
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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Cation exchange capacity — In soil science, cation exchange capacity (CEC) is the capacity of a soil for ion exchange of positively charged ions between the soil and the soil solution. (A positively charged ion, which has fewer electrons than protons, is known as a… … Wikipedia
ion-exchange capacity — jonų mainų talpa statusas T sritis Standartizacija ir metrologija apibrėžtis Keičiamų jonų kiekis (mmol), esantis 1 g ar 1 cm³ jonito. atitikmenys: angl. ion exchange capacity vok. Ionenaustauschkapazität, f rus. ионообменная емкость, f pranc.… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
ion-exchange capacity — jonų mainų talpa statusas T sritis chemija apibrėžtis Keičiamų jonų kiekis (mmol), esantis 1 g ar 1 cm³ jonito. atitikmenys: angl. ion exchange capacity rus. ионообменная емкость … Chemijos terminų aiškinamasis žodynas
ion-exchange capacity — ▪ chemistry measure of the ability of an insoluble material to undergo displacement of ions previously attached and loosely incorporated into its structure by oppositely charged ions present in the surrounding solution. zeolite minerals… … Universalium
cation exchange capacity — ability of the soil to retain cations and thus be fertile … Geography glossary
cation exchange capacity — The sum total of exchangeable cations that a porous medium can absorb. Expressed in moles of ion charge per kilogram of soil (or of other exchanges such as clay)  … Lexicon of Cave and Karst Terminology
cation exchange capacity — noun the measure of the potential of a soil to retain exchangeable cations; usually expressed in millimoles of positive charge per kilogram of soil … Australian English dictionary
Exchange — may mean: * Trade or barter, the voluntary exchange of goods and/or services * Social exchange * Student exchange program or high school exchange * Exchange rule, from Mathematical Logic * The exchange (chess), the value difference between rook… … Wikipedia
Capacity (law) — The capacity of both natural and artificial persons determines whether they may make binding amendments to their rights, duties and obligations, such as getting married or merging, entering into contracts, making gifts, or writing a valid will.… … Wikipedia
Exchange — See Energy exchange. U.S. Dept. of Energy, Energy Information Administration s Energy Glossary *** (Electric utility) Agreements between utilities providing for purchase, sale and trading of power. Usually relates to capacity (kilowatts)… … Energy terms