Genetron® MP66

An interim replacement for R-12 in low-temperature commercial refrigeration systems. For transport refrigeration, low temperature retrofits, retrofits including air conditioners and dehumidifiers.

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General Information

Item Specification
Class HCFC
Refrigerant Type Blend
Typical Lubricant Alkylbenzene
Substitutes CFC-12
Contains HCFC-22 (61%), HFC-152a (11%), HCFC-124 (28%)
Glide Moderate
Notes In most cases, no oil change is needed. Best for low temperature R-12 and R-500 retrofit appllications.

Physical Properties

Property Value
Chemical Name Chlorodifluoromethane, Difluoroethane, Chlorotetrafluoroethane
Chemical Notation CHClF2, CHF2CH, CHClFCF3
Molecular Weight 92.9
Boiling Point (°C) -34.6
Freezing Point (°C) -17.8
Critical Temperature (°C) 105.6
Critical Pressure (bar) 46.86
Liquid Density (kg/m³) 0°C 1272.7
Specific Heat of Liquid @ Constant Pressure @ 25°C (kJ/(kg.K)) 1.2822
Specific Heat of Vapor @ Constant Pressure @ 25°C (kJ/(kg.K)) 0.8782
Vapour Density (kg/m³) 25°C 3.8
GWP 1288
ODP 0.036
ATEL/ODL (kg/m³) 0.11
Practical Limit (kg/m³) 0.34
AIT (°C) 685
Flammable range, %vol. in air (Based on ASHRAE Standard 34 with Match Ignition) None
ANSIASHRAE Standard 36-1992 Safety Group Classification A1
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