Heat capacities of hydroxy and aminoderivatives of benzene

Heat capacities in the liquid phase C-l of methylbenzeneamines and heat cap acities in the solid phase C-s of benzenediols and of 4-methylbenzeneamine were measured by commercial Setaram heat conduction and power compensated c alorimeters. Results obtained cover the following temperature range (depend ing on the compound and state of aggregation): 2-methylbenzeneamine 313 to 371 K, 3-methylbenzeneamine 263 to 371 K, 4-methylbenzeneamine 133 to 353 K , 1,2-benzenediol 153 to 353 K, 1,3-benzenediol 173 to 353 K, 1,4-benzenedi ol 133 to 403 K. The heat capacity data obtained in this work were merged w ith experimental data from literature, critically assessed and sets of reco mmended data were developed by correlating selected data as a function of t emperature.