【摘 要】
：
Low-temperature heat capacities of pyrimethanil decylate(C_(22)H_(33)N_3O_2) were precisely measured with an automated adiabatic calorimeter over the temperatur
【出 处】
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Chemical Research in Chinese Universities
论文部分内容阅读
Low-temperature heat capacities of pyrimethanil decylate(C_(22)H_(33)N_3O_2) were precisely measured with an automated adiabatic calorimeter over the temperature range from 78 to 373 K. The sample was observed to melt at(311.04±0.06) K. The molar enthalpy and entropy of fusion as well as the chemical purity of the compound were determined to be(45876±12) J/mol, (147.50±0.05) J·mol -1 ·K -1 and (99.21±0.03)%(mass fraction), respectively. The extrapolated melting temperature for the absolutely pure compound obtained from fractional melting experiments is (311.204±0.035) K.
Low-temperature heat capacities of pyrimethanil decylate (C_ (22) H_ (33) N_3O_2) were precisely measured with an automated adiabatic calorimeter over the temperature range from 78 to 373 K. The sample was observed to melt at (311.04 ± 0.06) K . The molar enthalpy and entropy of fusion as well as the chemical purity of the compound were determined to be (45876 ± 12) J / mol, (147.50 ± 0.05) J · mol -1 · K -1 and (99.21 ± 0.03) % (mass fraction), respectively. The extrapolated melting temperature for the absolutely pure compound obtained from fractional melting experiments is (311.204 ± 0.035) K.
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