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The heat capacities of chrysanthemic acid in the temperature range from 80 to 400 K were measured with a precise automatic adiabatic calorimeter. The chrysanthemic acid sample was prepared with the purity of 0.9855 mole fraction. A solid-liquid fusion phase transition was observed in the experimental temperature range. The melting point, Tm, enthalpy and entropy of fusion, ΔfusHm, ΔfusSm, were determined to be 390.741±0.002 K, 14.51±0.13 kJ mol-1, 37.13±0.34 J mol-1 K-1, respectively. The thermodynamic functions of chrysanthemic acid, H(T)-H(298.15), S(T)-S(298.15) and G(T)-G(298.15) were reported with a temperature interval of 5 K. The TG analysis under the heating rate of 10 K min-1 confirmed that the thermal decomposition of the sample starts at ca. 410 K and terminates at ca. 471 K. The maximum decomposition rate was obtained at 466 K. The purity of the sample was determined by a fractional melting method. [ABSTRACT FROM AUTHOR]

The heat capacities of fenpropathrin in the temperature range from 80 to 400 K were measured with a precise automatic adiabatic calorimeter. The fenpropathrin sample was prepared with the purity of 0.9916 mole fraction. A solid—liquid fusion phase transition was observed in the experimental temperature range. The melting point, Tm, enthalpy and entropy of fusion, Δfus Hm, Δfus Sm, were determined to be 322.48±0.01 K, 18.57±0.29 kJ mol−1 and 57.59±1.01 J mol−1 K−1, respectively. The thermodynamic functions of fenpropathrin, H(T)— H(298.15), S(T)— S(298.15) and G(T)— G(298.15), were reported with a temperature interval of 5 K. The TG analysis under the heating rate of 10 K min−1 confirmed that the thermal decomposition of the sample starts at ca. 450 K and terminates at ca. 575 K. The maximum decomposition rate was obtained at 558 K. The purity of the sample was determined by a fractional melting method. [ABSTRACT FROM AUTHOR]