All of the R-407-series refrigerants are based on blends of the three HFC refrigerants R-32, R-125 and R-134a. R-407C has been formulated as a good match to the existing HCFC refrigerant R-22 for use in air conditioning, chilling and refrigeration applications and was the first of the R-22 alternatives to be used on a commercial scale. Suitable for retrofit and original equipment usage. Klea® 407C meets the GWP requirements beyond 2030 under the EU F-Gas Regulations for industrial and commercial refrigeration.

Property	S.I. Units	Value	British Units	Value
Molecular Weight	kg/kmol	86.2	lbm/lbmol	86.2
Critical Temperature	°C	86.03	°F	186.85
Critical Pressure	bara	46.29	psia	671.42
Critical Density	kg/m3	484.2	lb/ft3	30.23
Atmospheric Bubble Point	°C	-43.627	°F	-46.5
Atmospheric Dew Point	°C	-36.629	°F	-33.9
Latent Heat of Vapourisation at Atmospheric Pressure	kJ/kg	256.29	BTUIT/lb	110.18
Saturated Vapour Density at Atmospheric Pressure*	kg/m3	4.6306	lb/ft3	0.29
Liquid Vapour Pressure @25°C	bara	11.903	psia	172.6
Coefficient of Volumetric Thermal Expansion for Saturated Liquid at 25°C	°C-1	0.0040236	°F-1	0.00224
Speed of Sound* for Saturated Vapour at 25°C	m/s	154.97	ft/s	508.43
Adiabatic Exponent* for Saturated Vapour at 25°C		1.33		1.33
Latent Heat of Vapourisation at 25°C	kJ/kg	188.42	BTUIT/lb	81.01
Saturated Vapour Density at 25°C*	kg/m3	43.77	lb/ft3	2.73
Saturated Vapour Density at 0°C*	kg/m3	19.689	lb/ft3	1.23
* Vapour composition as per bulk refrigerant at dew point