Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry
ISSN: 0975-413X
Abstract
Theoretical Velocities and Viscosities of Binary Mixtures of Diethyl Malonate with Alkoxy Alkanols
Author(s): Ch. Udayalakshmi, K. A. K. Raj Kumar, V. N. S. R. Venkateswararao, P. B. Sandhyasri, G. R. Satyanarayana and C. RambabuExperimental and theoretical ultrasonic velocity and viscosity of the binary mixtures of di ethyl malonate + methoxy ethanol, di ethyl malonate + ethoxy ethanol and di ethyl malonate + butoxy ethanol have been reported at 303.15, 308.15, 313.15 and 318.15K, The following theoretical methods such as Nomotos relation, Van Dael relation , Impedance relation , Junjies relation , Impedance relation , Rao relation are used to calculate the theoretical ultrasonic velocity . Theoretical values are compared with experimental values to find the merits of the relations and check the validity of theses theoretical models by using percentage error and average percentage deviations. The results are discussed in terms of inter molecular interactions occurring in the systems. The theoretical viscosity data are evaluated with some of the semi - empirical viscosity models such as Grunberg and Nissan, Katti Chaudhri, Heric and Brewer and Hind and the results are compared with the experimental results.
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