Библиографическое описание:Thermodynamic Calculations of a Binary System based on Ammonium Sulfamate and Urea Derivatives : научное издание / Аleksandr S. Kazachenko, Yaroslava D. Berezhnaya. - Текст : непосредственный // Jordan Journal of Chemistry. - 2025. - Т.20, №3. - P. 241-250. - This study was carried out within the budget plan no. 0287-2021-0017 for the Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences on the equipment of the Krasnoyarsk Regional Center for Collective Use, Krasnoyarsk Scientific Center, Siberian Branch of the Russian Academy of Sciences. - ISSN 1814-9111. - ISSN 2079-7249, DOI 10.47014/20.3.4.
Аннотация:<jats:p>Deep eutectic solvents are widely used in various science related fields including organic chemistry, electrochemistry and etc. In this work, we present results regarding preparation of new deep eutectic solvents - a mixture of ammonium sulfamate (ASA) with urea (U) and its derivatives (methyl urea (MetU), ethyl urea (EtU), hydroxyethyl urea (HEtU). Melting points of various components eutectic mixtures are determined and phase diagrams are presented. It is shown that the eutectic point temperature of the ammonium sulfamate with urea (urea mole fraction 0.3) mixture is 361°K, with methyl urea mixture is 358°K (mole fraction 0.7), with ethyl urea mixture - 362°K (mole fraction 0.6), with the hydroxyethyl urea - 354°K (mole fraction 0.6). Based on obtained experimental data a complex calculation of the thermodynamic characteristics of the system (enthalpy, entropy, chemical potential, effective interaction parameter) was carried out. The chemical potentials of a deep eutectic solvent were calculated using ideal and real solution models.</jats:p>
Издательство:YARMOUK UNIV, DEANSHIP RESEARCH & GRADUATE STUDIES, C/O PROF IBRAHIM O ABU AL-JARAYESH, EIC, IRBID, JORDAN, 00000
Источник:Jordan Journal of Chemistry
Выпуск:Т.20, №3
Номера страниц:241-250
Держатель оригинала документа:Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Prof. V.F. Voino-Yasenetsky Krasnoyarsk State Medical University of the Ministry of Healthcare of the Russian Federation, Reshetnev Siberian State University of Science and Technology, Institute of Chemical Technologies, Siberian Federal University
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