Characterization of Dimethylsulfoxide / Glycerol Mixtures: A Binary Solvent System for the Study of "Friction-Dependent" Chemical Reactivity

TL;DR

This study characterizes dimethylsulfoxide/glycerol mixtures, highlighting their stable dielectric properties and suitability for studying how viscosity influences chemical reactivity, with attention to solvation effects.

Contribution

It provides detailed property measurements of DMSO/glycerol mixtures, emphasizing their use as a simple solvent system for friction-dependent chemical reactivity studies.

Findings

Mixture behaves as a relatively simple solvent.

Dielectric properties are relatively invariant.

Hydrogen-bonding properties vary with glycerol molar fraction.

Abstract

The properties of binary mixtures of dimethylsulfoxide and glycerol, measured by several techniques, are reported. Special attention is given to those properties contributing or affecting chemical reactions. In this respect the investigated mixture behaves as a relatively simple solvent and it is especially well suited for studies on the influence of viscosity in chemical reactivity. This is due to the relative invariance of the dielectric properties of the mixture. However, special caution must be taken with specific solvation, as the hydrogen-bonding properties of the solvent changes with the molar fraction of glycerol.