Genetron® 408A

An interim replacement for retrofitting low-and medium-temperature commercial refrigeration systems.

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General Information

Item Specification
ASHRAE # R-408A
Class HFC
Refrigerant Type Blend
Substitutes R-502, HCFC-22
Contains HFC-125 (7%), HFC-143a (46%), HCFC-22 (47%)
Glide Low
Notes Works well as R-502 substitute. Higher discharge temperatures than R-502. Use either synthetic oil or blends of AB/MO with AB>50%.

Physical Properties

Property Value
Chemical Name Pentafluoroethane, Trifluoroethane, Chlorodifluoromethane
Chemical Notation CF3CHF2, CF3CH3, CHClF2
Molecular Weight 87.7
Boiling Point (°C) -44.6
Freezing Point (°C) -17.8
Critical Temperature (°C) 83.1
Critical Pressure (bar) 42.94
Liquid Density (kg/m³) 0°C 1152.95
Specific Heat of Liquid @ Constant Pressure @ 25°C (kJ/(kg.K)) 1.4475
Specific Heat of Vapor @ Constant Pressure @ 25°C (kJ/(kg.K)) 1.1004
Vapour Density (kg/m³) 25°C 3.56
GWP 3152
ODP Non-ozone depleting
ATEL/ODL (kg/m³) 0.33
Practical Limit (kg/m³) 0.41
AIT (°C) ND
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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