Phase Equilibria in Cross-Sections of the Urea–Isopropanol–Water System at Subzero Temperatures

IF 0.4 4区工程技术 Q4 ENGINEERING, CHEMICAL

Theoretical Foundations of Chemical Engineering Pub Date : 2026-10-05 DOI:10.1134/S0040579526700454

E. A. Frolova, D. F. Kondakov

引用次数: 0

Abstract—Phase equilibria in sections of the CO(NH₂)₂–C₂H₅OH–H₂O system at temperatures below zero degrees Celsius were studied. It was found that the addition of ethanol to the urea–water system leads to the formation of low‑temperature eutectics with crystallization temperatures down to –26°C, which substantially extends the temperature range of urea’s application as an anti‑icing material. The discovered compositions are promising for the development of new anti‑icing materials based on them.

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低温下尿素-异丙醇-水体系截面的相平衡

摘要：研究了CO(NH2) 2-C2H5OH-H2O体系在摄氏零度以下部分的相平衡。结果表明，在尿素-水体系中加入乙醇可形成低温共晶，结晶温度可低至-26℃，大大延长了尿素作为防冰材料的应用温度范围。这些发现的成分为开发基于它们的新型防冰材料提供了前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Theoretical Foundations of Chemical Engineering 工程技术-工程：化工

CiteScore

1.20

自引率

25.00%

发文量

审稿时长

24 months

期刊介绍： Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.