Volumetric data from light scattering and perturbation theory for carbon tetrachloride, chloroform and dichloromethane

The ratio of isothermal compressibility to the square of isobaric expansivi ty (kappa(T)/alpha(p)(2)) was determined via Rayleigh light scattering expe riments for liquid carbon tetrachloride, chloroform and dichloromethane as a function of temperature. This ratio was also calculated by means of renor malized perturbation theory (in the case of polar molecules) and by the use of Johnson-Zollweg-Gubbins equation of state (in the case of carbon tetrac hloride), respectively. The data coming from light scattering show reasonab le agreement with those from theoretical calculations and from volumetric e xperiments given in the literature.