The Osmotic and Activity Coefficients of Quaternary Phosphonium Halides in Aqueous Solutions at Freezing Point
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چکیده
منابع مشابه
Osmotic coefficient of aqueous solutions of cyclohexylsulfamic Acid at the freezing point of solutions.
The osmotic coefficient of aqueous solutions of cyclohexylsulfamic acid was determined by freezing point measurements up to the molality 0.65 mol kg-1. The osmotic coefficients were fitted to the Pitzer equation, and ion interaction parameters α1, β(0) and β(1) were evaluated. The mean ion activity coefficient of the solute was calculated, and the non-ideal behaviour of the system investigated ...
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A procedure is described for the calculation of activity and osmotic coefficients which is based upon a knowledge of the equilibria in solutl.on and assumed si.ngle-ion activity coefficients. The procedure permits one to introduce chemical equilibria of various types (ion-pairing, complexation, hydration, and hydrolysis) into a model which can be used to calculate values of the excess Gibbs ene...
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A recently published model for the excess Gibbs energy of aqueous solutions containing mixed electrolytes (Lu and Maurer, 1993) is extended from 298 K to temperatures up to 573 K. The extension is achieved by introducing a universal relation for the influence of temperature on some model parameters. Although parameters are still ion specific, the influence of temperature on those parameters is ...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1983
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.56.1749