| abstract |
Disclosed is a working medium comprising 2-methoxy-1,1,1,3,3,3-fluoropropane (HFE-356mmz) as the main component. This working medium is a novel working medium for boiling-type coolers which is reduced in burdens imposed on the environment, e.g., global warming potential, is slightly flammable or is flame-retarded, has excellent thermal and chemical stability, and has satisfactory compatibility with heat exchangers, the materials of which are various metals. This medium for boiling-type coolers is suitable for use as a working medium for coolers for the power control units (PCUs) of motor vehicles. |