Abstract

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The densities and the refractive indices of ethanol, methanol and glycerol mixtures with water by ratios of (0.00-0.5104 mole fraction of alcohols) were measured at 293.15 °K. The densities, molal solubility and refractive indices of PCMX in the ethanol, methanol and glycerol–water mixtures by ratios of (0.00-0.5104 mole fraction of alcohols) were measured at 293.15 °K. The apparent molal volume (VQ), the Wander Wall volume (Vw), the electrostriction volume (Ve) and the solvated radius (r) of PCMX in the above solvent mixtures were calculated and discussed. Also, the molar refraction, the polarizability and the atomic polarization of PCMX in the ethanol, methanol and glycerol–water mixtures by ratios of (0.00-0.5104 mole fraction of alcohols) were measured at 293.15 °K were calculated and discussed. The result indicate that, as the concentrations of ethanol and methanol in alcohols–water mixtures increase, the densities of solvent (d°) and PCMX solutions (d) decrease and the refractive indices in both solvent and solution mixtures increase. It also noted that, increase of concentrations of glycerol–water mixtures resulted in increase in the refractive indices and density of the solvents and solutions. The spectra of PCMX in ethanol-water mixtures by ratios of (0.00-0.5104 mole fraction of alcohols) were measured at 293.15 °K. The spectra show a hyper chromic effect as the percentage of ethanol increased.

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