EXCESS VOLUMES AND VISCOSITIES OF MIXTURES OF NITROBENZENE AND CERTAIN AROMATIC BASES

Excess molar volumes V-E, excess viscosities eta(E), excess Gibbs ener gy changes for viscous flow Delta G(double dagger E) and interaction p arameters d for binary mixtures of nitrobenzene with aniline, N-methyl aniline and m-chloroaniline at selected compositions were determined f rom the measured values of densities and viscosities of pure component s and their mixtures at 30 degrees C. UV-visible spectra for all the b inary mixtures were recorded and showed a characteristic absorption ma ximum. The results are analyzed in terms of interactions arising due t o electron-donor-acceptor (EDA) or charge transfer (CT) complexation.