Activity Coefficients of RbF in Urea-Water and Formamide-Water Mixtures from Potentiometric Measurements

作者：Hao, Xiuhua; Li, Shuni^*; Zhai, Quanguo; Jiang, Yucheng; Hu, Mancheng^*

来源：Journal of Chemical and Engineering Data, 2016, 61(1): 220-227.

DOI：10.1021/acs.jced.5b00484

• EPSILON-INCREASING COSOLVENT
• 298.15 K
• AQUEOUS MIXTURES
• OSMOTIC COEFFICIENTS
• STRONG ELECTROLYTES
• MODIFIED PITZER
• METHANOL-WATER
• DEGREES C
• THERMODYNAMICS
• CONDUCTANCE

The potentiometric method was used to obtain mean activity coefficients of RbF in urea/formamide-water mixed solvents at 298.2 K. The weight fractions of amide were varied from 0 to 40 %. The Pitzer, modified Pitzer and extended Debye-Huckel equations were used for representing the mean activity coefficients and other related thermodynamic properties of the systems. Furthermore, corresponding parameters of the thermodynamic models mentioned herein before were also obtained.

• 出版日期2016-1
• 单位陕西师范大学