Viscometric studies of binary systems of n-decane with hexan-2-ol, heptan-2-ol and octan-2-ol at T = 298.15 K

P.G Department of Chemistry, Jalna Education Society's R. G. Bagdia Arts, S. B. Lakhotia Commerce and

R. Benzonji Science College, Jalna-431 203, Maharashtra, India

E-mail : marvind22@yahoo.co.in, mirgane_chem@yahoo.co.in

Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad-431 001, Maharastra, India

E-mail : abr_chem@yhoo.co.in

Manuscript received online 04 September 2012, revised 08 September 2012, accepted 27 September 2012

Th-is article reports experimental values of densities and viscosities on mixing of the binary mixtures of n-decane with hexan-2-ol, heptan-2-ol and octan-2-ol at 298.15 K and atmospheric pressure, over the whole range of mixture composition. The corresponding excess and derived properties were computed from the experimental data. The results were fitted by means of the Redlich-Kister equation to estimate the binary coefficients and standard errors. The viscosities of all the mixtures were correlated by Grunberg-Nissan, Tamara and Kurata, Hind et al., Katti and Chaudhari, Heric, Heric and Brewer and McAllister multi body model equations. The Prigogine-Fiory-Patterson (PFP) theory and its applicability in predicting V_mE is tested. The values of ∆. In η have been analyzed using Bloomfield and Dewan model. Jouyban-Acree model is also used to correlate the experimental values of density and viscosity data. Experimental and computed results are discussed in terms of molecular interactions.