Solubility Product Study of CdF2 in a Mixed Solvent Medium and Related Ion—Pair Formation at 25 °C

محورهای موضوعی : Journal of Physical & Theoretical Chemistry

Mehran Aghaie ¹ , Zahra Najafie ²

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تاریخ دریافت : 1394/03/10 تاریخ پذیرش : 1394/03/10 تاریخ انتشار : 1390/10/11

کلید واژه: Solubility product constant, Ion association, Mixed solvent,

چکیده مقاله :

The solubility of CdF2 in the mixed solvent (water(1)+ethanol(2)) with mass fraction, W1 = 0.9,was determined by using solvent evaporating method in the presence of various concentrations(0.100, 0.200, 0.300, 0.400, 0.500, 0.600, 0.800 and 1.500 mo1.1)) of NaCI at 25°C. The values ofsolubility and solubility product constant of CdF2 in the mixed solvent were evaluated at zero ionicstrength upon the extrapolation method. Then, the ion - pairing extension was calculated in theconsidered solution.