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Interacción de clorimeform con vermiculita y montmorillonita saturadas con cationes alquilamonio

Authors: Morillo González, Esmeralda; Pérez Rodríguez, José Luis; Hermosín, M.C.; Maqueda Porras, Celia; Justo, Ángel;

Interacción de clorimeform con vermiculita y montmorillonita saturadas con cationes alquilamonio

Abstract

[ES]: La adsorción de cationes orgánicos en los espacios interlaminaresde los minerales de la arcilla, por un proceso de cambio catiónico, es actualmente bien conocido (Mortland, 1970; Then, 1974). Los plaguicidas catiónicos pueden también ser adsorbidos en los espacios interlaminares de minerales de la arcilla, mediante un proceso de cambio catiónico con los iones inorgánicos inicialmente saturados de dichos minerales (Weber et al., 1965; Hayes et al., 1978; Pérez Rodríguez y Hermosín, 1979; Hermosín y Pérez Rodríguez, 1981; Morillo et al., 1983). Sin embargo, la interacción de plaguicidas con minerales de 12 arcilla, saturados previamente con cationes orgánicos, y la influencia que puede tener el empleo de distintos disolventes sobre dicha interacción ha sido poco estudiado. En este trabajo se estudia el comportamiento de los minerales de la arcilla, montmorillonita y vermiculita saturados en el catión decilamonio, cuando se trata con soluciones acuosas y en butanol de plaguicida clordimeform. Con ello, se pretende determinar la influencia de las características del mineral, así como del disolvente utilizado.

[EN]: The interaction of decylammonium-montmorillonite and decylammonium-vemiculite with chlordimeform in butanolic and aqueous medium has be en carried out. The interaction of decylarnmonium-vermiculite with chlordimeform in aqueous medium produce the pesticide degradation, remaining the alkylammonium cation in the interlayer space, while in butanol medium, it's produce the C-N rupture in the alkylammonium ions, yielding NH+4-vermiculite. The interaction of decylarnmonium-montmorillonite occurs throught a cation exchange mechanism of alkylammonium ions by the chlordimeform cations, with different exchange rate in water than in butanol. The results show the effect of the mineral type and solvent on the mechanism of interaction between organic cations and alkylammonium-clays

11 págs., 2 figuras, 10 referencias.-- Plaguicidas en suelos : actas del V Simposium Internacional de Plaguicidas en Suelos. Sevilla, 3-5 Junio de 1985

Peer reviewed

Keywords

Pesticide, Chlordimeform, Vermiculite, Adsorption, Pesticides, Montmorillonite

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This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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