FIELD: chemistry.
SUBSTANCE: group of inventions relates to a concentrated heat transfer fluid, a heat transfer fluid and a method of preventing corrosion in a heat transfer system. Disclosed is a concentrated heat transfer fluid without siloxane and polyether copolymers containing a freezing point depressant and a non-ionic surfactant containing (i) a corrosion inhibitor for copper and copper alloys and (ii) polyalkylene glycol. Specific electric conductivity of concentrated heat-transfer fluid medium is less than or equal to 100 mcS/cm.
EFFECT: providing protection against corrosion of metals of heat transfer system.
45 cl, 3 dwg, 12 tbl
