Abstract
Enthalpies of solutions of certain methyl alkanoates in trichloromethane and benzene were measured calorimetrically using a high precision solution calorimeter at infinite dilution at 298.15K. All the esters used dissolved in benzene with the absirotuib if heat, In trichloromethane, however, liquid esters dissolved with the absorption of heat.
On the basis of the experimental results obtained enthalpy of fusion of methyl hexadecanoate could be evaluated by the differences in the solution enthalpies of the liquid and solid ester at 298.15K. The evaluated enthalpy of fusion of methyl hexadecanoate coincided with that measured at our laboratory using an adiabatic calorimeter, but was about 4kJ mol-1 higher than that given in the literature.
(CH2) 2 enthalpy increments of solution and solvation for the successive members were evaluated and compared with those of normal alkanes.
