Relationship between ETpolarity and composition in binary solvent mixtures
- 1 January 1992
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 88 (24), 3541-3546
- https://doi.org/10.1039/ft9928803541
Abstract
A new equation for facile computation of ET(30) values of binary solvent mixture from their composition (mole fraction, molality or molarity) is derived. The equation is based on one parameter which takes into account the preferential solvation of the ET indicator by the solvents of the mixture. The equation has been successfully applied to 52 binary solvents. The results show that the studied binary solvents show four different behaviours which can be explained in terms of solvent–solvent interactions. The proposed equation allows a simple definition of the solvent polarity as a function of composition.Keywords
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