base cation

См. также в других словарях:

• Base Molle — Une base molle est une base volumineuse et peu chargée contenant des atomes peu électronégatifs et très polarisables. L opposé d une base molle est une base dure. Le critère de dureté d une base est utilisé dans le principe HSAB ( Hard ans Soft… …   Wikipédia en Français

• Base échangeable — ● Base échangeable cation adsorbé par des colloïdes du sol …   Encyclopédie Universelle

• 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

• Base molle — Une base molle est une base volumineuse et peu chargée contenant des atomes peu électronégatifs et très polarisables. L opposé d une base molle est une base dure. Le critère de dureté d une base est utilisé dans le principe HSAB (Hard ans Soft… …   Wikipédia en Français

• base — 1. The lower part or bottom; the part of a pyramidal or conical structure opposite the apex; the foundation. SYN: basis [TA], basement (1). 2. In pharmacy, the chief ingredient of a mixture. 3. In chemistry, an …   Medical dictionary

• base exchange —    The displacement of a cation bound to a site on the surface of a solid, as in silica alumina clay mineral packets, by a cation solution [6] …   Lexicon of Cave and Karst Terminology

• cation exchange — noun : ion exchange in which one cation (as sodium or hydrogen) is substituted for one or more other cations (as calcium and magnesium in hard water) called also base exchange …   Useful english dictionary

• base — Synonyms and related words: CP, GHQ, HQ, Mickey Mouse, abhorrent, abject, abominable, acid, acidity, agent, alkali, alkalinity, alloisomer, anchor, angle, anion, antacid, antecedents, arrant, atom, atrocious, awful, background, bad, baluster,… …   Moby Thesaurus

• base exchange — I. noun Etymology: base (I) : cation exchange II. noun : a post exchange on a naval or an air force base …   Useful english dictionary

• cation — Synonyms and related words: acid, acidity, agent, alkali, alkalinity, alloisomer, anion, antacid, atom, base, biochemical, chemical, chemical element, chromoisomer, compound, copolymer, dimer, electrocoating, electroetching, electrogalvanization …   Moby Thesaurus

• acid–base reaction — ▪ chemistry Introduction       a type of chemical process typified by the exchange of one or more hydrogen ions, H+, between species that may be neutral (molecules, such as water, H2O; or acetic acid, CH3CO2H) or electrically charged (ions, such… …   Universalium