Distribution Equilibria of Hydrogen Bromide between Water and Methyl Isobutyl Ketone

Abstract

To obtain the fundamental data for the extraction processes of separating any metal ion as the metal-bromo complex from the various metal ions in hydrobromic acid solutions, we studied the distribution equilibria of hydrogen bromide between water and methyl isobutyl ketone at 25 °C, and obtained the distribution constant K_D= 5.26×10^-8 and the ion-pair formation constant in the methyl isobutyl ketone phase K_A=1.24×10⁴l/mol.