Low-Temperature Phase Equilibria in an Ethylene Glycol–Acetone System-Reference-Cited by-同舟云学术

Low-Temperature Phase Equilibria in an Ethylene Glycol–Acetone System

Published:2023-02-01 Issue:2 Volume:97 Page:210-215
ISSN:0044-4537
Container-title:Журнал физической химии
language:
Short-container-title:Russian Journal of Physical Chemistry

Author:

Solonina I. A.¹,Makaev S. V.²,Rodnikova M. N.¹,Kiselev M. R.³,Khoroshilov A. V.¹

Affiliation:

1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences

2. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences

3. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences

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.

Publisher

The Russian Academy of Sciences

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