A comparative study of non-linearity parameter for binary liquid mixtures

The present investigation comprises of theoretical evaluation of acoustic non-linearity parameter, B/A for equimolar binary mixtures, viz. chlorobenzene or 1chloronaphthalene with a series of normal alkanes (n-Cn, n = 6, 8, 10, 12, 14, 16), and with a series of highly branched alkanes (br-C, n 6, 8, 12, 16), viz. 2,2dimethylbutane (br-C6), 2,2,4-trimethylpentane (br-Cs), 2,2,4,6,6-pentamethylheptane (br-C12) and 2,2,4,4,6,8,8-heptamethylnonane (br-Cie). Tong and Dong method, thermoacoustical method, Hartmann relation and Ballou relation have been employed to evaluate B/A. A comparative study of B/A values obtained from the aforementioned methods has been made. The results are discussed on the basis of structural orientations of normal and branched alkanes.