Phase Equilibria in Sections of the Magnesium Chloride–Urea–Water System at Negative Temperatures

Abstract

Phase equilibria in sections of the MgCl₂–CO(NH₂)₂–H₂O system at temperatures below 0°C are studied. It is established that the introduction of urea into the MgCl₂–H₂O system leads to the formation of low-temperature eutectics with crystallization temperatures down to –51°C, which significantly expands the temperature range of application of magnesium chloride as an anti-icing material. The identified compositions are promising for the development of new anti-icing materials on their basis.