Browsing by Author "Saleem, Syed M."

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    Desorption of Electrolytes at Liquid-Vapour and Liquid-Liquid Interfaces
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1977, 73 (1), 1977) Aveyard, Robert; Saleem, Syed M.; Heselden, Roy
    The desorption of various simple inorganic salts at the decanol-water interface has been studied, and analysed together with previously obtained results for the air-electrolyte and dodecane-electrolyte interfaces. The desorption of the salts is much more dependent on the nature of the anion, at all three interface types, than it is on the cation and the results are discussed in terms of the possible interaction between anions and hydration layers at the interfaces. The dependence of free energies of adsorption of alkanols, both from alkane and from electrolyte, on the alkane-electrolyte interface has also been investigated and it is concluded that the chemical potential of the alkanol at the surface is not much affected by the salts, but the influence is greater the less the desorption of the salt.
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    Work and entropy of adhesion at liquid–liquid interfaces and the relationship to salt desorption
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1977, 73 (06), 1977) Aveyard, Robert; Saleem, Syed M.
    Works of adhesion of cyclohexane, toluene, chloro-octane and nonan-2-one, with water, have been determined as a function of temperature. From these results, and others in the literature, it is shown that a rectilinear relationship exists between the work and entropy of adhesion. Results for systems where water is replaced by ethan-1,2-diol do not conform to this relationship, and it is concluded that the linearity observed for the aqueous systems is a result of the promotion, by the organic liquids, of interfacial water structure. It is also found that the desorption of NaCl at the aqueous electrolyte–organic liquid interface is less the greater the work of adhesion between water and the organic liquid.