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采用精密自动绝热量热计测量了自己合成并提纯到0.9916(摩尔分数)的甲氰菊酯在80～400K温区的热容.在此温区发现一固液熔化相变.其熔化温度、摩尔熔化焓、摩尔熔化熵分别为:(322.476±0.012)K,(18.57±0.29)kJ·mol~(-1),(57.59±1.01)J·K~(-1)·mol~(-1).报道了该物质每隔5K的热力学函数值,用热重法研究了该化合物的热分解,对试样的化学纯度进行了量热法研究.
The heat capacity of fenpropathrin, synthesized and purified to 0.9916 (mole fraction) in the temperature range of 80-400 K, was measured by a precision automatic adiabatic calorimeter. A solid-liquid phase transition was found in this temperature range. The melting temperature, The molar enthalpy of melting and the entropy of melting were respectively (322.476 ± 0.012) K, (18.57 ± 0.29) kJ · mol -1, (57.59 ± 1.01) J · K -1 · mol -1 The thermodynamic function of this material was reported every 5K, and the thermal decomposition of the compound was studied by thermogravimetric method. The chemical purity of the material was investigated by calorimetry.