A. V. Knyazev, N. N. Smirnova, O. V. Stepanova, S. S. Knyazeva, A. S. Shipilova, S. V. Chuprova
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引用次数: 0
摘要
摘要 通过精确的真空绝热量热法，首次测定了戊酸倍他米松在 5.5 至 346 K 范围内的热容量随温度的变化。根据实验数据确定了戊酸倍他米松在 T → 0 至 350 K 温度范围内的热力学函数，即热容量、焓 H°(T) - H°(0)、熵 S°(T) - S°(0)和吉布斯函数 G°(T) - H°(0)。热膨胀系数是通过低温粉末 X 射线衍射仪测定的。
Thermodynamic Functions of the Betamethasone Valerate Hormone
Abstract
The temperature dependence of the heat capacity of betamethasone valerate in the range from 5.5 to 346 K was measured for the first time by precise vacuum adiabatic calorimetry. The thermodynamic functions of betamethasone valerate, namely, heat capacity, enthalpy H°(T) – H°(0), entropy S°(T) – S°(0), and Gibbs function G°(T) – H°(0) were determined for the temperature range from T → 0 to 350 K based on the experimental data. The thermal expansion coefficients were determined by low temperature powder X-ray diffractometry.
期刊介绍：
Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world.
Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.
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