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Investigation of Fickian diffusion in the ternary mixture of 1,2,3,4-tetrahydronaphthalene, isobutylbenzene, and dodecane

par Mialdun, Aliaksndr ;Sechenyh, Vitaliy ;Legros, Jean Claude ;Ortiz De Zárate, José María;Shevtsova, Valentina
Référence The Journal of Chemical Physics, 139, 10, 104903
Publication Publié, 2013-09

Article révisé par les pairs

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Résumé :

We present a comprehensive analysis of experimental results obtained for Fickian diffusion in the benchmark ternary liquid mixture of 1,2,3,4-tetrahydronaphthalene, isobutylbenzene, and dodecane (nC12) with equal mass fractions. Isothermal diffusion coefficients have been measured by two independent experimental methods: by Taylor dispersion technique, and by a counter flow cell fitted with an optical interferometry device. The experimental diffusion matrices have been critically analyzed regarding the Onsager reciprocal relations, for which we introduce a matrix asymmetry index s2 that is independent of the frame of reference and the component order. © 2013 AIP Publishing LLC.