Инд. авторы: Paukov I.E., Kovalevskaya Y.A., Boldyreva E.V., Drebushchak V.A.
Заглавие: Heat capacity of β-alanine in a temperature range between 6 and 300 K
Библ. ссылка: Paukov I.E., Kovalevskaya Y.A., Boldyreva E.V., Drebushchak V.A. Heat capacity of β-alanine in a temperature range between 6 and 300 K // Journal of Thermal Analysis and Calorimetry. - 2009. - Vol.98. - Iss. 3. - P.873-876. - ISSN 1388-6150. - EISSN 1572-8943.
Внешние системы: DOI: 10.1007/s10973-009-0104-6; SCOPUS: 2-s2.0-75149150339;
Реферат: eng: Thermodynamic properties of β-alanine in the temperature range 6.3-301 K were studied. No phase transitions were observed for the sample specially prepared to contain no solvent inclusions. At 298.15 K the calorimetric entropy and the difference in the enthalpy values are equal, respectively, to 126.6 JK-1 mol-1 and 19.220 Jmol-1. The Cp (T) in the temperature range 6-16 K can be well described by Debye equation Cp = AT3. A comparison of the data on the entropies of glycine polymorphs and of β-alanine was used to show, that the empirical Parks-Huffman rule holds in the case of these compounds. © 2009 Akadémiai Kiadó, Budapest, Hungary.
Ключевые слова: Calorimetry; Molecular crystals; Parks; Phase transitions; Specific heat; Thermodynamics; Temperature range; Solvent inclusions; NO phase; Huffman; Heat capacities; Debye equation; Adiabatic calorimetry; Thermodynamic functions; Molecular crystals; Heat capacity; Adiabatic calorimetry; Thermodynamic functions; β-Alanine;
Издано: 2009
Физ. характеристика: с.873-876