Browsing by Author "Anderson, John"

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    Transport in Aqueous Solutions of Group IIB Metal Salts at 298.15 K Part 1.—Isothermal Transport Properties of Cadmium Iodide
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1977, 73 (11), 1977) Paterson, Russell; Anderson, John; Anderson, Stephen S
    The isothermal transport properties of aqueous cadmium iodide solutions have been measured in the range 0.05–0.60 mol dm–3. Transport numbers (t+) and solvent-fixed diffusion coefficients of the salt (Dv) were obtained, the former potentiometrically using cadmium amalgam concentration cells, with transference, and the latter by interferometry, using Rayleigh optics. In addition, electrical conductance measurements were made. The data are compared with existing, but incomplete, literature sources. Attention is drawn to the negative transport number of cadmium obtained in more concentrated solutions (> 0.28 mol dm–3).
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    Transport in Aqueous Solutions of Group IIB Metal Salts at 298.15 K Part 2.—Interpretation and Prediction of Transport in Dilute Solutions of Cadmium Iodide : An Irreversible Thermodynamic Analysis
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1977, 73 (11), 1977) Paterson, Russell; Anderson, John; Anderson, Stephen S; Lutfullah
    The transport data of Part 1 have been used to obtain the binary mobility coefficients (Lik) and corresponding resistance coefficients (Rik) of the salt in the range 0.05–0.60 mol dm–3. It is shown that these binary mobility coefficients are summations of the more fundamental mobility and coupling coefficients (lik) between the component ions of the complexed salt: Cd2+, CdI2–xx(x= 1, 2, 3, 4) and I–. The distribution of these complexes at each concentration have been obtained from stability constant data and used in an optimisation procedure to obtain equivalent ionic conductances of the complex ions at infinite dilution (λ°x). These data were used to estimate lik coefficients (using Pikal's method), to predict binary coefficients (Lik) and to predict the transport numbers, conductances and salt diffusion coefficients of the salt in dilute solutions. Predicted and observed data are in good agreement in dilute solutions.