FIELD: chemistry.
SUBSTANCE: invention relates to water-soluble liquid refrigerant mixture for closed cooling circuits and to its application for detecting leaks in circuit and/or as antifreeze for water-based circuits. Liquid refrigerant mixture includes at least one colorant, fluorescent under impact of ultraviolet radiation, and at least one liquid, selected from water, ethyleneglycol, propyleneglycol, hexileneglycol, glycerol or their mixtures. Also described is method for detecting leaks in closed circuits of cooling systems.
EFFECT: fast and accurate detection of all possible leaks in circuit is provided without necessity to introduce any additives into it, as well as possibility to add claimed refrigerant mixture to refrigerant which is already used in circuit without simultaneous formation of sediments or admixtures, causing damage to system.
9 cl, 2 ex
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