Thermodynamic Properties of Diphenylmethane

Published

March 30, 2005

Author(s)

Robert D. Chirico, William Steele

Abstract

Measurements leading to the calculation of the standard thermodynamic properties for gaseous diphenylmethane (Chemical Abstracts registry number [101-81-5]) are reported. Experimental methods include adiabatic heat-capacity calorimetry, vibrating-tube densitometry, comparative ebulliometry, inclined-piston gauge manometry, and differential-scanning calorimetry (d.s.c.). This research group published measurement results for the enthalpy of combustion previously. The critical temperature was measured with a differential scanning calorimeter. The critical pressure and critical density were estimated. Standard molar entropies, standard molar enthalpies, and standard molar Gibbs free energies of formation were derived at selected temperatures between 298.15 K and 700 K. All results are compared with experimental values reported previously in the literature.

Citation

Journal of Chemical and Engineering Data

Volume

50

Issue

3

Pub Type

Journals

Download Paper

https://doi.org/10.1021/je050034s

Keywords

critical properties, density, heat capacity, ideal-gas properties, thermodynamic functions, vapor pressure

Citation

Chirico, R. and Steele, W. (2005), Thermodynamic Properties of Diphenylmethane, Journal of Chemical and Engineering Data, [online], https://doi.org/10.1021/je050034s (Accessed October 12, 2025)