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1 1998

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Solubility of n-alkanes in ethyl tert-butyl ether

Domańska U., Venkatesu P.

Polish Journal of Chemistry

1998

Vol. 72, nr 8

1981-1993

The solid-liquid equilibrium (SLE), of 11 binary mixtures of n-alkanes (octadecane, nonadecane, eicosane, heneicosane, docosane, tricosane, tetracosane, pentacosane, hexacosane, heptacosane, octacosane) in ethyl tert-butyl ether, (ethyl 1,1-dimethylethyl ether, ETBE) have been determined from 275 K to the melting temperature of n-alkane. Results of solubility are compared with values calculated by Wilson, NRTL and UNIQUAC equations utilizing parameters from SLE. The existence of solid-solid first order phase transition in hydrocarbons has been considered in the solubility calculations. The best correlation of the solubility data has been obtained by the NRTL equation, where the average root-mean-square deviation of the solubility temperaures is 0.84 K.