The velocity and density of binary mixtures of diethyl malonate with formamide, dimethylformamide and dimethylacetamide were experimentally measured at temperatures (303.15, 308.15, 313.15, 318.15)K. Various acoustic and thermodynamic parameters were evaluated using experimental data, the results have been discussed based on molecular interactions and geometric effects of the components in the mixture. FT-IR spectral analysis gives evidence of molecular association.
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