Ternary mixtures of HFC and HC as "drop in" substitutes for R12 in household refrigerators.

[In Italian. / En italien.]


A ternary mixture R125-R134a-R600 is proposed as a drop-in substitute for R12, in household refrigerators. The presence of R600, although in small percentage (5%), allows a mineral oil to be used. Tests carried out on a domestic refrigerator have shown that even if a phase separation occurs in the refrigerant-oil system, the operation of the refrigerating circuit is satisfactory in all cases. This mixture is not flammable and has been successfully tested for chemical stability, reliability of operation and energy efficiency.


  • Original title: [In Italian. / En italien.]
  • Record ID : 1997-3227
  • Languages: Italian
  • Source: Condizionamento, riscaldamento, refrigerazione: innovazioni e tendenze. 37e Convegno annuale AICARR./ Air Conditioning, Heating and Refrigeration: Innovations and Trends. 37th annual conference of AICARR.
  • Publication date: 1996/03/29
  • Document available for consultation in the library of the IIR headquarters only.


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