We report for the first time the temperature dependence of heat capacity of crystalline triphenylantimony dipropionate. The fusion of the compound has been specified and its standard thermodynamic characteristics were analyzed. The thermodynamic functions of Ph3Sb(OC(O)C2H5)2 in crystalline and liquid states was calculated. The isochoric heat capacity of Ph3Sb(OC(O)C2H5)2 and its components, the lattice and atomic contributions were estimated.