Kinetics and Mechanistic study of Saponification of a Few Industrially Important Esters, viz., glyceryl Dilaurate and Glyceryl Oleostearate

Abstract

Kinetics of saponification of two structurally related and industrially
important diesters have been investigated. Time ratio method
and Swain's standard data for series first order reactions have.been
utilised for evaluation of rate data and thermodynamic parameters,
viz.,  ΔE^≠ ,-  ΔH^≠ , ΔG^≠, ΔS^≠ and log A for both the steps which
involve the competitive and consecutive saponification reactions
which also indicate that the first step of saponification process is
quite faster than the second step and further more the oleostearate
is less saponifiable than dilaurate in 72% dioxane-water, DMSO-water
moiety and in general these processes are much faster in
DMSO-water system than alcohol-water, acetone-water and
dioxane-water systems.