Тип публикации: статья из журнала
Год издания: 2025
Идентификатор DOI: 10.47014/20.3.4
Ключевые слова: deep eutectic solvent, ammonium sulfamate, urea derivatives, cellulose
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),Показать полностьюhydroxyethyl 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>
Журнал: Jordan Journal of Chemistry
Выпуск журнала: Т.20, №3
Номера страниц: 241-250
ISSN журнала: 18149111
Издатель: YARMOUK UNIV, DEANSHIP RESEARCH & GRADUATE STUDIES, C/O PROF IBRAHIM O ABU AL-JARAYESH, EIC, IRBID, JORDAN, 00000