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An amendment to a second-order group additivity method for the estimation of the heat capacity of pure organic liquids as a function of temperature in the range from the melting temperature to the normal boiling temperature is reported. The temperature dependence of various group contributions and structural corrections is represented by a series of second order polynomial expressions. The group contribution parameters have been developed from an extended database of more than 1800 recommended heat capacity values. The present method should be more versatile and more accurate than the previous one Růžička and Domalski, J. Phys. Chem. Ref. Data 22, 597, 619 (1993) due to the use of a larger database and an improved procedure for parameter calculation.
Zábranský et al. (Wed,) studied this question.