Dielectric Properties of Methanol and Methanol-1-Propanol Solutions

Measurements of dispersion in the solutions show that at all concentrations the principal dispersion is a simple relaxation process, while the higher frequency behavior gives evidence of overlapping dispersions. As in other alcohols, the temperature dependences of relaxation times differ markedly from simple rate laws, especially for temperatures below 200°K. The significance of the results in relation to reorientation of hydroxyl and alkyl groups and intermolecular hydrogen bonds is discussed. Difficulties in measurements on solid methanol are described and their possible origins examined.