Genetron® MP39

An interim replacement for R-12 in medium-temperature commercial refrigeration systems. For medium temperature retrofits.

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General Information

Item Specification
Class HCFC
Refrigerant Type Blend
Typical Lubricant Alkylbenzene
Substitutes CFC-12
Contains HCFC-22 (53%), HFC-152a (13%), HCFC-124 (34%)
Glide Moderate
Notes In most cases, no oil change is needed. Best for applications with >0 degrees F suction.

Physical Properties

Property Value
Chemical Name Chlorodifluoromethane, Difluoroethane, Chlorotetrafluoroethane
Chemical Notation CHClF2, CHF2CH3, CHClFCF3
Molecular Weight 94.4
Boiling Point (°C) -32.9
Freezing Point (°C) -17.8
Critical Temperature (°C) 107.3
Critical Pressure (bar) 46.07
Liquid Density (kg/m³) 0°C 1272.1
Specific Heat of Liquid @ Constant Pressure @ 25°C (kJ/(kg.K)) 1.286
Specific Heat of Vapor @ Constant Pressure @ 25°C (kJ/(kg.K)) 0.8835
Vapour Density (kg/m³) 25°C 3.86
GWP 1182
ODP 0.033
ATEL/ODL (kg/m³) 0.1
Practical Limit (kg/m³) 0.3
AIT (°C) 681
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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