MOLECULAR INTERACTION IN A POLAR-POLAR SYSTEM-METHYL ISOBUTYL KETONE (MIBK) AND PRIMARY ALIPHATIC-ALCOHOLS - USING DIELECTRIC MEASUREMENTS

Dielectric constant of binary mixtures of Methyl isobutyl Ketone (MIBK ) with a number of aliphatic alcohols, namely 1-propanol, 1-butanol, 1 -pentanol, 1-hexanol, 1-heptanol and 1-octanol has been measured at 30 3.16 K and 455 kHz. The data are used to compute the mutual correlatio n parameter g(ab), excess molar polarization Delta P, and excess Gibb' s free energy Delta G in those mixtures with a view to assessing the s uitability of the alcohol as a modifier. The trend of variation of g(a b) indicates that octanol could be grouped with other higher alcohols already used as modifier.