Issue 3, 2003

Refractive indices, molar volumes and molar refractions of binary liquid mixtures: concepts and correlations

Abstract

Prompted by the observation that recent literature displays marked disagreement as to the proper treatment of data on the refractive indices of binary liquid mixtures, this paper clarifies the relationships among refractive index, molar volume and molar refraction and the corresponding mixing properties. It is shown that the molar refraction deviation function must be calculated on a mole fraction basis and the refractive index deviation function on a volume fraction basis, which makes it directly interpretable as a sign-reversed measure of the deviation of reduced free volume from ideality.

Supplementary files

Article information

Article type
Paper
Submitted
09 Sep 2002
Accepted
06 Dec 2002
First published
03 Jan 2003

Phys. Chem. Chem. Phys., 2003,5, 550-557

Refractive indices, molar volumes and molar refractions of binary liquid mixtures: concepts and correlations

P. Brocos, Á. Piñeiro, R. Bravo and A. Amigo, Phys. Chem. Chem. Phys., 2003, 5, 550 DOI: 10.1039/B208765K

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