Evidence for an Intrinsic Refractive-Index Anomaly in a Critical Binary Liquid Mixture
- 13 June 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 60 (24) , 2507-2510
- https://doi.org/10.1103/physrevlett.60.2507
Abstract
New experimental data for the refractive-index behavior in the homogeneous phase below the lower critical solution point in critical-composition liquid mixtures of triethylamine and water are presented. From a comparison with existing density data it is concluded that the critical anomaly in the refractive index includes an intrinsic effect opposite in sign to the density contribution.Keywords
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