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首页> 外文期刊>Journal of thermal analysis and calorimetry >Study on thermodynamic properties of glyphosate by oxygen-bomb calorimeter and DSC
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Study on thermodynamic properties of glyphosate by oxygen-bomb calorimeter and DSC

机译：氧弹量热仪和DSC研究草甘膦的热力学性质

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摘要

The combustion enthalpy of glyphosate was determined by XRY-1C oxygen-bomb calorimeter at a constant volume. The standard mole combustion enthalpy and the standard mole formation enthalpy have been calculated to be -1702.19 and -1478.36 kJ mol~(-1), respectively. For testing the reliability of instrument, glycine and naphthalene were used as reference materials by comparing the measured values with the literature values, the absolute error and relative error are 2.58 kJ mol~(-1) and 0.26 % for glycine, respectively, and these of naphthalene are 4.08 kJ mol~(-1) and 0.08 %, respectively. Moreover, the constant-pressure heat capacities c _p of glyphosate were measured by differential scanning calorimetry in the temperature range 303.15-365.15 K, and the relationship between c _p and temperature was established. These related studies can provide a thermodynamic basis for their further application.
机译：草甘膦的燃烧焓由XRY-1C氧弹量热仪以恒定体积测定。计算得出的标准摩尔燃烧焓和标准摩尔生成焓分别为-1702.19和-1478.36 kJ mol〜（-1）。为了测试仪器的可靠性，通过将测量值与文献值进行比较，将甘氨酸和萘用作参考材料，甘氨酸的绝对误差和相对误差分别为2.58 kJ mol〜（-1）和0.26％。萘的摩尔数分别为4.08kJ mol·（-1）和0.08％。此外，通过差示扫描量热法在303.15-365.15 K的温度范围内测定了草甘膦的恒压热容c _p，建立了c _p与温度的关系。这些相关研究可以为它们的进一步应用提供热力学基础。

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