SORET EFFECT IN DILUTE AQUEOUS ALKALINE EARTH AND NICKEL CHLORIDE SOLUTIONS AT 25 degree C.

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作者
Petit, C.J. [1 ]
Hwang, M.-H. [1 ]
Lin, J.-L. [1 ]
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[1] Boston Coll, Chestnut Hill, MA, USA, Boston Coll, Chestnut Hill, MA, USA
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ALKALINE EARTH COMPOUNDS - NICKEL COMPOUNDS - POTENTIOMETERS - Applications - THERMAL DIFFUSION - THERMOELECTRICITY;
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摘要
The Soret effect in dilute aqueous solutions of alkaline earth and nickel chlorides at 25 degree C has been investigated by the potentiometric method. The molar entropies of transport have been obtained from the measurements of the initial and final (Soret steady-state) thermoelectric powers. The Soret coefficients at 0. 005 M (molarity) have been calculated. The variation of the conventional ionic entropies of transport with the ionic radii is investigated and its possible implications for ionic hydration phenomena are discussed.
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页码:687 / 697
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