Measurement and modeling of transport properties of binary liquid mixtures containing oxygenates and n-alkanes

Dynamic viscosities (eta) of the binary liquid mixtures of 2-propanol (1)+n-alkanes (C-6, C-7, C-9) (2) at T=288.15 K to 303.15 K and ethanol (1)+n-alkanes (C-6, C-7, C-8) (2) at T=308.15 K to 318.15 K were experimentally measured over the whole composition range. Experimental values of eta were used to compute the deviation in dynamic viscosity (Delta eta) and these Delta eta values were correlated with the Redlich-Kister equation. The eta values of binary mixtures were also calculated using several empirical correlations and mixing rules like Grunberg-Nissan, Tamura-Kurata, Kati-Chaudhari and McLaughlin-Ubbelohde and found that the Grunberg-Nissan correlation gave the best estimation. The Delta eta values were also predicted by an approach given by Singh et al. [Indian J Chem 29, 263 (1990)].