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    Surface Tensions of Some n-Alkanes and Their Binary Mixtures in Cyclohexane
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (1-6), 1974) Jain, Dharam V. S.; Singh, Surjit; Wadi, Ramesh K.
    Surface tensions of five binary mixtures of n-alkanes (C6, C7, C8, C12 and C16) with cyclohexane have been measured at 298.16 K over the entire mole fraction range. The mixtures containing the lower n-alkanes (C6–C8) show Gibbsean enrichment of the low surface tension component in the liquid/vapour interface, whereas the mixtures containing n-dodecane and n-hexadecane give both negative and positive excess surface tensions. The experimental results are in fair agreement with Flory's theory, recently extended to the surface tension of binary mixtures.
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    Wetting of Silica by n-Alkanes
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (1-6), 1974) Ingram, Barry T.
    The thicknesses of a series of n-alkane liquid films on the surface of vitreous silica were measured at a low disjoining pressure using ellipsometry. Whereas pentane, hexane and heptane wet the silica and formed thick films (∼20 nm), octane and the higher alkanes gave much thinner (<3 nm) films and formed very small but non-zero contact angles which were measured by interference microscopy. These observations were interpreted by applying the Lifshitz theory of van der Waals forces to various surface layer models. Fairly good agreement with the experimental results was obtained by using a two layer model representing a silica surface with a microporous structure impervious to the hydrocarbons.
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    Effect of silica surface dehydroxylation on adsorption of aromatic hydrocarbons from solution in n-alkanes
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (5), 1972) Eltekov, Yu. A.; Khopina, V. V.; Kiselev, A. V.
    The adsorption of a series of aromatic hydrocarbons from solution in saturated hydrocarbons on hydroxylated and dehydroxylated silica surface has been investigated. Dehydroxylation of silica surface sharply diminishes the adsorption of aromatic hydrocarbons. Since the molecules of aromatic hydrocarbons on the hydroxylated silica are oriented parallel to the surface, the influence on adsorption of the size of molecules at the same orientation was investigated and distribution functions for several systems were determined. The equilibrium constants and the activity coefficients of surface benzene + n-hexane phases on hydroxylated and dehydroxylated silica and on graphitized carbon black surfaces have been calculated.