The REDTEK Store Hydrocarbon Refrigerants,Refrigerant Properties Web Page

Application for RED TEK® Refrigerants [top]

RED TEK® hydrocarbon refrigerants are used in a wide range of automotive, commercial, and industrial air conditioning and refrigeration systems.

REFRIGERANT	COMPOSITION	REPLACEMENT
RED TEK® 12a	zeotrope	(CFC-12, HFC-134a)
RED TEK® 22a	pure	HCFC-22
RED TEK® 502a	zeotrope	R502, HFC-407C

Environmental Properties [top]

Environmental organizations and Green Peace have endorsed hydrocarbon refrigerants because they are ecologically safe and non toxic. RED TEK® refrigerants are non ODP products and are very low global warming.

REFRIGERANT	NATURAL PRODUCT	ODP	GWP	ATMOSPHERE LIFETIME (yrs.)
RED TEK® 12a	yes	0	3	<1
RED TEK® 22a	yes	0	3	<1
RED TEK® 502a	yes	0	3	<1
R12	no	0.80	10600	100
R134a	no	0	1600	13
R22	no	0.032	1800	12

Oil Selection Chart [top]

RED TEK® refrigerants are fully compatible with most common refrigeration lubricants. All RED TEK® refrigerants are soluble with all refrigeration oils. RED TEK® refrigerants should not be used with silicone oils.

REFRIGERANT	LUBRICANT
RED TEK® 12a	MO, POE, PAG or AB
RED TEK® 22a	MO, POE, PAG or AB
RED TEK® 502a	MO, POE, PAG or AB
R12	MO
R134a	POE
R22	MO or AB
R502	MO or AB
R23	POE
R13	MO or AB
R507	POE
R408A	AB
R402B	MO or AB
R409A	MO or AB
R407C	POE
R401B	MO or AB
R508B	POE

MO	Mineral Oil
PAG	Poly alkyl glycol
AB	Alkylbenzene
POE	Polyol Ester

Physical Properties [top]

RED TEK® refrigerants are compared against non Hydrocarbon refrigerants.


RED TEK® 12a	HC	zeotrope	+12-+32%	HC	-31	106	34	367kJ/kg
RED TEK® 22a	HC	pure	+12-30%	HC	-42	96.7	42	439kJ/kg
RED TEK® 502a	HC	zeotrope	+12-25%	HC	-47	91.8	46.2	338kJ/kg
R12	CFC	pure	0	halide	-30	112	41.1	145kJ/kg
R134a	HFC	pure	-8%	halide	-26	101.1	40.7	189kJ/kg
R22	HCFC	pure	0	halide	-40	96	49.7	180kJ/kg

Refrigerant Purity [top]

RED TEK® 12a, 22a, and 502a hydrocarbon refrigerants are 99.7% pure saturated hydrocarbon. Total quality is assured from product development through actual production. RED TEK® refrigerants blending process complimented by ISO 9002 certification, means consistent, continuing conformance.

MOISTURE	AROMATICS	SULFUR
<10 mg/kg	<15 mg/kg	<2 mg/kg

Seal/Refrigerant Compatibility [top]

Most all common elastomer and plastic refrigeration materials used as o-rings, seals, and gaskets are compatible with
RED TEK® refrigerants. Butyl hoses are incompatible and should not be used with hydrocarbon refrigerants.

Refrigerant	VITON	DISOGRIN	BUNA N	NEOPRENE	BUTYL	TEFLON
RED TEK® 12a	E	G	E	G	U	E
RED TEK® 22a	E	G	E	G	U	E
RED TEK® 502a	E	G	E	G	U	E
Freon 11	E	U	F	U	U	E
Freon 12	G	G	G	E	F	E
Freon 21	U	X	U	P	P	E
Freon 22	U	U	U	G	G	E
Freon 114	G	E	E	E	G	E
Freon 115	G	X	G	G	G	E
Freon 142b	U	X	E	E	E	E
Freon 152a	U	X	E	E	E	E
Freon C318	G	X	G	G	G	E

LEGEND: E=Excellent G=Good F=Fair P=Poor U=Unsatisfactory X=Unknown

Notes:

EPR = Ethylene-Propylene
Disogrin = Polyurethane
Buna N = Nitrile
Viton = Fluorocarbon

Thermodynamic Properites [top]

Thermodynamic properties of RED TEK® refrigerants are compared to various refrigerants.

Property	RED TEK® 12a	RED TEK® 22a	RED TEK® 502a	R12	R134a	R22
Specific heat, l (kJ/kg.K)	2.51	2.91	2.73	.98	1.43	1.29
Specific heat, v (kJ/kg.K)	1.77	1.88	1.89	.70	1.01	.91
Density, (kg/m³)	533	496	500	1310	1206	1191
Density, (kg/m³)	12.2	21	22.50	36.8	32.3	44.8
Ratio specific heats,l	1.43	1.61	1.62	1.63	1.56	1.80
Ratio specific heats,v	1.16	1.25	1.26	1.24	1.23	1.72
Viscosity,l (Pa.s)x10¯6	141	102	101	199	208	146
Viscosity,v (Pa.s)x10¯6	8.4	8.8	8.9	13.4	12.1	12.9
Surface Tension(N/m)x10¯³	9.3	7.0	7.1	8.5	8.3	8.2
Temperature glide (K)	7.8	0	3.9	0	0	0
Speed of Sound, l (m/s)	814	720	724	406	508	522
Speed of Sound, v (m/s)	209	216	216	133	144	159
Thermal cond.	.10	.09	.09	.07	.08	.08
Thermal cond	.02	.02	.02	.01	.01	.01
Latent heat (kJ/kg)	353	340	348	139	178	180