Home Products RS-45 (R434A) for OEMs HFC Free Technology Inventions United Nations European Regulations Refigerant Services Inc ComStar International Inc Resource Separations Contact Information RS-24 Data Files Physical Data & Retrofit Pressure Temperature Tables R12 Replacements Product Safety Data Sheet Pressure Enthalpy Chart Materials Compatibility Thermodynamic Tables Questions & Answers RS-24 Trials Domestic Freezer Mini van Field Trial Toyota Field Trial Commercial Refrigeration Trial Domestic Refrigerator

Page 2 of 4 RS-24 (R426A) The new Zero ODP Drop-in Refrigerant Suitable for all applications including mobile air conditioning. No need to change the existing lubricant avoiding expensive retrofit. Avoids risks associated with a 'dirty retrofit' using R134a and mineral oil. The use of RS-24 enables oil return to the compressor. No hardware changes required. Avoids the use of hygroscopic and costly synthetic lubricants. Glide of less than 1°C. Easy to recycle. Lower discharge temperatures. Zero ozone depletion potential. Non-flammable. An almost perfect performance match to replace R12. The ideal replacement for R12 in vehicle air conditioning. Available in returnable and disposable cylinders. Suitable for new and existing plant and equipment. Drop-in and long-term R12 replacement RS-24 is an easy-to-use Drop-in replacement for R12, There is no need to change the existing lubricant in the system, thereby avoiding a costly retrofit. RS-24 also provides a long term solution to replacing R12 in most applications such as hermetic and semi-hermetic systems, domestic refrigerators, refrigerated transport, cold stores, cellar cooling, dairy chillers, vending machines and including mobile air conditioning. The properties of RS-24 make it an almost perfect match for R12 with its compatibility for traditional and synthetic lubricants, similar performance, lower discharge temperature, non-flammability and relatively short atmospheric lifetime. Performance relative to R12 is illustrated in Charts 1, 2 and 3 (on subsquent pages - please follow the link at the bottom of this page). It is this combination of properties which makes RS-24 unique as a replacement for R12 on the market today. RS-24 is also suitable as a replacement for R134a due to its higher capacity which can be particularly beneficial at high ambient temperatures. RS-24 is an excellent replacement for R12 and compatible with R134a automotive air conditioning systems. Ashrae Number RS-24 has been designated an Ashrae number of R426A with a classification of A1, which is low toxicity and nonflammable. RS-24 Physical Properties          RS-24      R12 Molecular weight        102.6      120.9 Boiling point (1 atm)      °C      - 28.6(1)      -29.8      °F      -19.5(1)      -21.6 Temperature glide      °C      0.5      0 Critical temperature      °C      101.0      112.0      °F      213.8      233.6 Critical pressure      kPa      4097      4116      psia      594      597 Liquid density at 25°C      kg/m³      1184      1311 Density of saturated vapour at 25°C      kg/m³      30.9      37.3 Specific heat of liquid at 25°C      kJ/kg°C      1.45      1.00 Specific heat of vapour at 1 atm and 25°C      kJ/kg°C      0.863      0.606 Vapour pressure at 25°C      kPa      707(1)      643      psia      102.6(1)      93.3 Latent heat of vaporisation at boiling point      kJ/kg      218      165 Ozone Depletion Potential      ODP      0      1 Flammability limit in air (1 atm)      vol%      None      None Inhalation exposure (8 hr day and 40 hr week)      ppm      1000      1000   (1) Bubble point << Page 1 Page 3 >>