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The Variation of Magnetic Double Refraction with Temperature in Acetone and Certain Acetic Esters
Phys. Rev. 53, 84 – Published 1 January, 1938
DOI: https://doi.org/10.1103/PhysRev.53.84
Abstract
Measurement of the Cotton-Mouton coefficient at various temperatures between -60°C and 40°C were made on acetone and several normal acetic esters. Under neutral environment the relationship for these materials is best represented by a straight line with a slope of the same sign but of much larger value than can be justified by the mathematical theory. This is interpreted as indicating a larger molecular interaction in the liquid than is assumed in the theory. In the presence of a freshly cleaned surface of copper, acetone shows a reversal of sign of the birefringence with decreasing temperature. Evidence in the case of amyl acetate indicates that there is no discontinuity in the Cotton-Mouton coefficient near the freezing point.
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