Email this article Low-Temperature Phase Equilibria in an Ethylene Glycol–Acetone System
- Authors: Solonina I.A.1, Makaev S.V.2, Rodnikova M.N.1, Kiselev M.R.3, Khoroshilov A.V.1
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Affiliations:
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Issue: Vol 97, No 2 (2023)
- Pages: 210-215
- Section: ХИМИЧЕСКАЯ ТЕРМОДИНАМИКА И ТЕРМОХИМИЯ
- URL: https://journals.rcsi.science/0044-4537/article/view/136507
- DOI: https://doi.org/10.31857/S0044453723020267
- EDN: https://elibrary.ru/ELRSMN
- ID: 136507
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Abstract
An ethylene glycol (EG)–acetone (AC) system is studied via differential scanning calorimetry in the −140 to +40°С range of temperatures. A phase diagram is plotted over the range of concentrations. It is found that the mixtures in the system are supercooled by more than 30°C. Low-temperature melting is recorded in the region around −98°C, which corresponds to the eutectic point temperature. The devitrification of rapidly cooled samples is observed in the range of concentrations up to ~21 mol % AC, and the temperature of devitrification is determined (Tg ~ −120°C). The plotted phase diagram of the EG–AC system is compared to a water–acetone phase diagram.
About the authors
I. A. Solonina
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: rodnikova@igic.ras.ru
119071, Moscow, Russia
S. V. Makaev
Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Email: rodnikova@igic.ras.ru
119071, Moscow, Russia
M. N. Rodnikova
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: rodnikova@igic.ras.ru
119071, Moscow, Russia
M. R. Kiselev
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: rodnikova@igic.ras.ru
119071, Moscow, Russia
A. V. Khoroshilov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Author for correspondence.
Email: rodnikova@igic.ras.ru
119071, Moscow, Russia
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