Volumetric and Viscometric Studies of Some Amino Acids in Aqueous Solutions of Cadmium Chloride at T = (288.15 to 318.15) K and at Atmospheric Pressure

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• 作者：Tarlok S. Banipal ; Jasbir Kaur ; Parampaul K. Banipal ; Ashwani K. Sood ; Kultar Singh
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2011
• 出版时间：June 9, 2011
• 年：2011
• 卷：56
• 期：6
• 页码：2751-2760
• 全文大小：905K
• 年卷期：v.56,no.6(June 9, 2011)
• ISSN：1520-5134

文摘

The apparent molar volumes, apparent molar adiabatic compressibilities, and viscosities of glycine, dl-伪-alanine, dl-伪-amino-n-butyric acid, l-valine, and l-leucine, in aqueous solutions of cadmium chloride, CdCl₂, at different concentrations have been determined in the temperature range (288.15 to 318.15) K from density, sound velocity, and time flow measurements, using a vibrating-tube digital densimeter, ultrasonic multifrequency interferometer, and Ubbelohde type capillary viscometer attached with an automatic viscosity measuring unit, respectively. From these data, partial molar volumes V₂^o, partial molar adiabatic compressibilities, K^o_S,2, viscosity B-coefficients, and the corresponding transfer parameters (螖_tV^o₂, 螖_tK^o_S,2, and 螖_tB), hydration numbers, n_H, and side chain group contributions, dB/dT have been calculated. Transfer parameters are positive and increase with the concentration of CdCl₂.