bentonite

bentonite
a) any of several impure clay minerals consisting mostly of montmorillonite
b) a porous clay formed by the decomposition of volcanic ash that swells 5 to 6 times its original volume in the presence of water

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  • Bentonite — is an absorbent aluminium phyllosilicate generally impure clay consisting mostly of montmorillonite. There are a few types of bentonites and their names depend on the dominant elements, such as K, Na, Ca, and Al. As noted in several places in the …   Wikipedia

  • Bentonite — La bentonite est une argile colloïdale dont le nom vient de Fort Benton dans le Wyoming aux États Unis. Connue aussi sous le terme de terre à foulon, elle peut être considérée comme une smectite, étant essentiellement constituée de… …   Wikipédia en Français

  • bentonite — [ bɛ̃tɔnit ] n. f. • 1928; de Fort Benton, n. d une ville des États Unis ♦ Géol. Minéral argileux gonflant au contact de l eau. ● bentonite nom féminin (de Fort Benton, nom propre) Argile smectique gonflante de la famille des montmorillonites.… …   Encyclopédie Universelle

  • bentonite — entonite n. an absorbent aluminum silicate clay formed from volcanic ash. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • Bentonite — Bentonite. См. Бентонит. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • bentonite — ☆ bentonite [ben′tən īt΄ ] n. [after Fort Benton (named for Senator Benton: see BENTON Thomas Hart) in Montana, where it is found] a porous clay consisting mainly of the mineral montmorillonite, which swells greatly when it absorbs water …   English World dictionary

  • bentonite — bentonitic /ben tn it ik/, adj. /ben tn uyt /, n. Mineral. a clay formed by the decomposition of volcanic ash, having the ability to absorb large quantities of water and to expand to several times its normal volume. [1895 1900; named after Fort… …   Universalium

  • bentonite — ben·to·nì·te s.f. TS petr. → argilla smectica {{line}} {{/line}} DATA: 1942. ETIMO: dall ingl. bentonite, der. di (Fort) Benton, nome di una località del Montana …   Dizionario italiano

  • bentonite — bentonitas statusas T sritis chemija apibrėžtis Montmorilonitinis molis, kurio pagrindinis komponentas hidratuoti aliuminio silikatai. atitikmenys: angl. bentonite rus. бентонит …   Chemijos terminų aiškinamasis žodynas

  • Bentonite —    La bentonite est une argile que l on utilise pour coller les vins, c est à dire pour les clarifier, les rendre limpides …   L'Abécédaire du Vin

  • bentonite magma — [NF] a suspension of bentonite in purified water; used as a pharmaceutical suspending agent …   Medical dictionary

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