R-12 Dichlorodifluoromethane - Properties

Thermodynamic properties of saturated and superheated Dichlorodifluoromethane (CF2Cl2), like specific volume, enthalpy and entropy.

Specific volume (v), specific internal energy (u), enthalpy (h), and entropy (s) of saturated and superheated Dichlorodifluoromethane (CF₂Cl₂) - also known as refrigerant 12 R-12.

R12 Dichlorodifluoromethane saturation pressure vs temperature

For full table with Entropy and Superheated properties - rotate the screen!

R-12 Dichlorodifluoromethane - Properties
Saturated Properties							Superheated Properties (t - t_s)
Temperature - t_s - (^oC)	Pressure - p_s - (bar abs)	Specific Volume - v_i - (m³/kg)	Specific Enthalpy		Specific Entropy		15 K		30 K
Temperature - t_s - (^oC)	Pressure - p_s - (bar abs)	Specific Volume - v_i - (m³/kg)	saturated liquid - h_f - (kJ/kg)	saturated vapor - h_g - (kJ/kg)	saturated liquid - s_f - (kJ/kgK)	saturated vapor - s_g - (kJ/kgK)	Specific Enthalpy - h - (kJ/kg)	Specific Entropy - s - (kJ/kgK)	Specific Enthalpy - h - (kJ/kg)	Specific Entropy - s - (kJ/kgK)
-100	0.0118	10.100	-51.84	142.00	-0.2567	0.8628	148.89	0.9019	156.10	0.9428
-95	0.0181	6.585	-47.56	144.22	-0.2323	0.8442	151.23	0.8830	158.55	0.9195
-90	0.0284	4.416	-43.28	146.46	-0.2083	0.8274	153.59	0.8649	161.02	0.9010
-85	0.0424	3.037	-39.00	148.73	-0.1856	0.8122	155.98	0.8493	163.52	0.8851
-80	0.0617	2.138	-34.72	151.02	-0.1631	0.7985	158.39	0.8351	166.04	0.8706
-75	0.0879	1.538	-30.43	153.32	-0.1412	0.7861	160.82	0.8226	168.57	0.8578
-70	0.1227	1.127	-26.13	155.63	-0.1198	0.7749	163.26	0.8110	171.12	0.8459
-65	0.1680	0.8412	-21.81	157.96	-0.0988	0.7649	165.70	0.8008	173.68	0.8355
-60	0.2262	0.6379	-17.49	160.29	-0.0783	0.7558	168.15	0.7915	176.26	0.8259
-55	0.2998	0.4910	-13.14	162.62	-0.0582	0.7475	170.60	0.7830	178.84	0.8172
-50	0.3915	0.3831	-8.78	164.95	-0.0384	0.7401	173.07	0.7753	181.43	0.8093
-45	0.5044	0.3027	-4.40	167.28	-0.0190	0.7335	175.54	0.7685	184.01	0.8023
-40	0.6417	0.2419	0	169.60	0	0.7274	178.00	0.7623	186.60	0.7959
-35	0.8071	0.1954	4.42	171.90	0.0187	0.7219	180.45	0.7568	189.18	0.7902
-30	1.004	0.1594	8.86	174.20	0.0371	0.7170	182.90	0.7517	191.76	0.7851
-25	1.237	0.1312	13.33	176.48	0.0552	0.7127	185.33	0.7473	194.33	0.7805
-20	1.509	0.1088	17.82	178.73	0.0731	0.7087	187.75	0.7432	196.89	0.7764
-15	1.826	0.0910	22.33	180.97	0.0906	0.7051	190.15	0.7397	199.44	0.7728
-10	2.191	0.0766	26.87	183.19	0.1080	0.7020	192.53	0.7365	201.97	0.7695
-5	2.610	0.0650	31.45	185.38	0.1251	0.6991	194.90	0.7336	204.49	0.7666
0	3.086	0.0554	36.05	187.53	0.1420	0.6966	197.25	0.7311	206.99	0.7641
5	3.626	0.0475	40.69	189.66	0.1587	0.6943	199.56	0.7289	209.47	0.7618
10	4.233	0.0409	45.37	191.74	0.1752	0.6921	201.85	0.7268	211.92	0.7598
15	4.914	0.0354	50.10	193.78	0.1915	0.6901	204.10	0.7251	214.35	0.7580
20	5.673	0.0308	54.87	195.78	0.2078	0.6885	206.32	0.7235	216.75	0.7565
25	6.516	0.0269	59.70	197.73	0.2239	0.6869	208.50	0.7220	219.11	0.7552
30	7.449	0.0235	64.59	199.62	0.2399	0.6853	210.63	0.7208	221.44	0.7540
35	8.477	0.0206	69.55	201.45	0.2559	0.6839	212.72	0.7196	223.73	0.7529
40	9.607	0.0182	74.59	203.20	0.2718	0.6825	214.76	0.7185	225.98	0.7519
45	10.84	0.0160	79.71	204.87	0.2877	0.6811	216.74	0.7175	228.18	0.7511
50	12.19	0.0142	84.94	206.45	0.3037	0.6797	218.64	0.7166	230.33	0.7503
55	13.66	0.0125	90.27	207.92	0.3197	0.6782	220.48	0.7156	232.42	0.7496
60	15.26	0.0111	95.74	209.26	0.3358	0.6765	222.23	0.7146	234.45	0.7490
65	16.99	0.00985	101.36	210.46	0.3521	0.6747	223.89	0.7136	236.42	0.7484
70	18.86	0.00873	107.15	211.48	0.3686	0.6726	225.45	0.7125	238.32	0.7477
75	20.88	0.00772	113.15	212.29	0.3854	0.6702	226.89	0.7113	240.13	0.7470
80	23.05	0.00682	119.39	212.83	0.4027	0.6673	228.21	0.7099	241.86	0.7463
85	25.38	0.00601	125.93	213.04	0.4204	0.6636	229.39	0.7084	243.50	0.7455
90	27.89	0.00526	132.84	212.80	0.4389	0.6591	230.43	0.7067	245.03	0.7445
95	30.57	0.00456	140.23	211.94	0.4583	0.6531	231.30	0.7047	246.47	0.7435
100	33.44	0.00390	148.32	210.12	0.4793	0.6449	231.93	0.7023	247.80	0.7424
105	36.51	0.00324	157.52	206.57	0.5028	0.6325	232.22	0.6994	248.97	0.7412
110	39.79	0.00246	169.55	197.99	0.5334	0.6076	232.47	0.6964	250.10	0.7399
112	41.15	0.00179	183.43	183.43	0.5690	0.5690	232.80	0.6958	250.58	0.7394

1 m³/kg = 16.02 ft³/lb = 27680 in³/lb = 119.8 gal(US)/lb = 99.7764 gal(UK)/lb
1 kJ/kg = 1 J/g = 0.23885 kcal/kg = 0.4299 Btu/lb = 0.0002778 kWh/kg
Dichlorodifluoromethane Molecular weight : 120.93 g/mol
Dichlorodifluoromethane Liquid Density (1.013 bar at boiling point) : 1486 kg/m³ (250 K : 1468 kg/m³) (300 K : 1304 kg/m³)
Dichlorodifluoromethane Liquid Specific Heat (c_p) (250 K : 0.902 kJ/kg.K) (300 K : 0.980 kJ/kg.K)
Dichlorodifluoromethane Liquid/gas equivalent (1.013 bar and 15 ^oC (59 ^oF)) : 292 vol/vol
Dichlorodifluoromethane Liquid Dynamic Viscosity (250K : 336×10⁶ Ns/m²) (300K : 213×10⁶ Ns/m²)
Dichlorodifluoromethane Liquid Thermal Conductivity (250 K : 86.8×10⁶ kW/m.K) (300 K : 68.6×10⁶ kW/m.K)
Dichlorodifluoromethane Boiling point (1.013 bar) : -29.8 ^oC
Dichlorodifluoromethane Latent heat of vaporization (1.013 bar at boiling point) : 166.95 kJ/kg
Dichlorodifluoromethane Critical point - Critical temperature : 112 ^oC - Critical pressure : 41.15 bar
Dichlorodifluoromethane Gas Density (1.013 bar at boiling point) : 6.25 kg/m³
Dichlorodifluoromethane Gas Density (1.013 bar and 15 ^oC (59 ^oF)) : 5.11 kg/m³
Dichlorodifluoromethane Gas Compressibility Factor (Z) (the ratio of the actual volume of the gas to the volume determined according to the perfect gas law) (1.013 bar and 15 ^oC (59 ^oF)) : 0.995
Dichlorodifluoromethane Gas Specific Gravity (air = 1) (1.013 bar and 21 ^oC (70 ^oF)) : 4.2
Dichlorodifluoromethane Gas Specific volume (1.013 bar and 21 ^oC (70 ^oF)) : 0.195 m³/kg
Dichlorodifluoromethane Gas Specific Heat at constant pressure (c_p) (1.013 bar and 15 ^oC (59 ^oF)) : 0.074 kJ/(mol.K)
Dichlorodifluoromethane Gas Specific Heat at constant volume (c_v) (1.013 bar and 15 ^oC (59 ^oF)) : 0.065 kJ/(mol.K)
Dichlorodifluoromethane Gas Ratio of Specific Heats (Gamma: c_p/c_v) (1.013 bar and 15 ^oC (59 ^oF)) : 1.138889
Dichlorodifluoromethane Gas Dynamic Viscosity (1.013 bar and 0 ^oC (31 ^oF)) : 0.0001168 Poise
Dichlorodifluoromethane Gas Thermal conductivity (1.013 bar and 0 ^oC (31 ^oF)) : 9.46 mW/(m.K)

Note! Due to its ozone-depleting potential, dichlorodifluoromethane is currently replaced by R134a (1,1,1,2-tetrafluoroethane), R142b (Chloro-1-difluoro-1,1-ethane) or R409a (mixture containing 60 % of R12)