Catégorie FONCTION PROPRIETE REACTION CHIMIQUE
Documents disponibles dans cette catégorie (12)
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B. Gu ; J. Schmitt ; Z. Chen ; L. Liang ; AL Et | 1994Etude des mécanismes de l'adsorption de la matière organique naturelle sur l'oxyde de fer au moyen de techniques telles que chimie humide, microcalorimétrie, spectroscopie RMN et RITF. Mise au point d'un modèle adsorption-désorption basé sur la [...]
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High-affinity metal binding by isolated humic acids has been observed for both copper and calcium in metal titration experiments. Results of titrations of humic acids with a single metal ( either calcium or copper) are consistent with a discrete[...]
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V. Kislenko ; A. Berlin | 1991
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S. Majumdar ; S. Krishnamurthy ; TATA INSTITUTE OF FUNDAMENTAL RESEARCH MUMBAI IND ; M. Barma ; PMMH-ESPCI PARIS | 1998We study nonequilibrium phase transitions in a mass-aggregation model which allows for diffusion, aggregation on contact, dissociation, adsorption, and desorption of unit masses. We analyze two limits explicitly. In the first case mass is locall[...]
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B. Bartschat ; S. Cabaniss ; F. Morel | 1992An oligoelectrolyte model of humic substances is developed to explain ionic strength effects on copper and hydrogen ion titrations. After discussing the relevance of various polyelectrolyte models to humic substances, we choose a model in which [...]
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Immobilizing adsorption of diffusing penetrants is know to occur in a number of polymer membrane systems. It will cause very large increases in the diffusion time lag but we have only minor effects on the steady-state permeation. This effect may[...]
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D. Barraclough ; M. Smith | 1987
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