cation exchange capacity

катионообменная емкость

Англо-русский словарь по экологии. 2011.

Смотреть что такое "cation exchange capacity" в других словарях:

  • 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

  • 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) [22] …   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

  • Cation-exchange capacities and specific surface areas of clay minerals — ▪ Table Cation exchange capacities and specific surface areas of clay minerals mineral cation exchange capacity at pH 7 (milliequivalents per 100 grams) specific surface area (square metre per gram) kaolinite 3–15 5–40 halloysite (hydrated) 40–50 …   Universalium

  • exchange capacity —    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 [22].    2. The total ionic charge of the adsorption complex active in the adsorption of… …   Lexicon of Cave and Karst Terminology

  • 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

  • Ion exchange — Ion exchanger Ion exchange resin beads …   Wikipedia

  • Ion exchange resin — An ion exchange resin is an insoluble matrix (or support structure) normally in the form of small (1 2 mm diameter) beads, usually white or yellowish, fabricated from an organic polymer substrate. The material has highly developed structure of… …   Wikipedia

  • Soil pH — is the pH of soil water. It is based on the measurement of pH, which depends on the activity of hydrogen ions (H+) in a solution.There are many different methods to collect soil water, all which influence the measured soil pH in one way or… …   Wikipedia

  • Sand-based athletic fields — are sporting grounds constructed on sand, which have certain advantages over those built on native soils. Highly maintained areas of turf, such as those on an athletic field or on golf greens and tees, can be grown in native soil or sand based… …   Wikipedia

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