Molecular interaction studies of cinnamaldehyde with certain alcohols by ultrasonic method at 303.15 K

Abstract

The results of a new experimental study of thermo physical properties for eight binary systems of cinnamaldehyde with different alkanols have been presented. Speed of ultrasound (<i style="mso-bidi-font-style:normal">u</i>), density (<img src='http://www.niscair.res.in/jinfo/rho.gif' border=0>) and viscosity (<img src='/image/spc_char/Etta.gif' border=0>) at 303.15 K and atmospheric pressure have been measured over the whole range of composition. These properties have been used to calculate various thermo acoustical parameters. The variations in these parameters have been studied in terms of nature and extent of interaction and the effect of structure of alcohols on the existing interactions. The non-ideal behaviour of the binary systems has been revealed through the sign and magnitude of excess velocity, viscosity deviation and other excess parameters. These parameters have been studied on the basis of dipole-dipole interactions and hydrogen bonding. The excess parameters have been fitted to polynomial type Redlich-Kister equation and the coefficients of the fitting have been found to support the present investigation.

</span></span></span></span></span></span>