POTENTIOMETRIC DETERMINATION OF THE AUTOPROTOLYSIS CONSTANT OF N-BUTANOL

Document Type : Original Article

Author

Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt

Abstract

The autoprotolysis constant of n-butanol is determined at 25° potentiometrically with the aid of the two cells:
Glass electrode / HCl(m), BuOHD // ZnCl2 (sat.), BuOH, Hg2Cl2, Hg
and
Glass electrode / KOH(m), BuOH // ZnCl2 (sat. ), BuOH, Hg2Cl2, Hg
The mean activity coefficients (g±) of hydrogen chloride in n-butanol are compared to the corresponding theoretical values.