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R-12 Dichlorodifluoromethane - Properties

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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.

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

R-12 Dichlorodifluoromethane - Properties
Saturated PropertiesSuperheated Properties
(t - ts)
Temperature
- ts -
(oC)

Pressure
- ps -
(bar abs)

Specific Volume
- vi -
(m3/kg)		Specific EnthalpySpecific Entropy15 K30 K
saturated liquid
- hf -
(kJ/kg)		saturated vapor
- hg -
(kJ/kg)		saturated liquid
- sf -
(kJ/kgK)		saturated vapor
- sg -
(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 (cp) (250 K : 0.902 kJ/kg.K) (300 K : 0.980 kJ/kg.K)
  • Dichlorodifluoromethane Liquid/gas equivalent (1.013 bar and 15oC (59oF)) : 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) : -29.8oC
  • Dichlorodifluoromethane Latent heat of vaporization (1.013 bar at boiling point) : 166.95 kJ/kg
  • Dichlorodifluoromethane Critical point - Critical temperature : 112oC - 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 15oC (59oF)) : 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 15oC (59oF)) : 0.995
  • Dichlorodifluoromethane Gas Specific Gravity (air = 1) (1.013 bar and 21oC (70oF)) : 4.2
  • Dichlorodifluoromethane Gas Specific volume (1.013 bar and 21oC (70oF)) : 0.195 m3/kg
  • Dichlorodifluoromethane Gas Specific Heat at constant pressure (cp) (1.013 bar and 15oC (59oF)) : 0.074 kJ/(mol.K)
  • Dichlorodifluoromethane Gas Specific Heat at constant volume (cv) (1.013 bar and 15oC (59oF)) : 0.065 kJ/(mol.K)
  • Dichlorodifluoromethane Gas Ratio of Specific Heats (Gamma: cp/cv) (1.013 bar and 15oC (59oF)) : 1.138889
  • Dichlorodifluoromethane Gas Dynamic Viscosity (1.013 bar and 0oC (32oF)) : 0.0001168 Poise
  • Dichlorodifluoromethane Gas Thermal conductivity (1.013 bar and 0oC (32oF)) : 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)

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