Determination of the magnetooptic rotatory power of pure organic substances and their mixtures
Abstract
It has been investigated whether the magnetooptic rotation can be used for the analysis of the structure of hydrocarbons and the composition of their mixtures. An apparatus has been described for the measurement of the Verdet constant to within 1‰. For pure substances the magnetooptic rotation constant D = {9 n}/{(n 2 + 2) 2}{M}/{d}V proves to be built up additively from the contributions of the atomic groups and the characteristics of the molecule. Except in the case of compounds showing ramifications, this additivity holds within 5‰. Measurements on mixtures showed that in the case of liquids without appreciable contraction additivity exists within the experimental accuracy. These results have been applied to the analysis of technical mixtures of hydrocarbons. The ring analysis can be carried further by the new method than by means of parachor measurements.
- Publication:
-
Physica
- Pub Date:
- March 1943
- DOI:
- 10.1016/S0031-8914(43)90024-2
- Bibcode:
- 1943Phy....10...97B