Table 4-1 - Properties of Fluorocarbons

(3M Speciality Fluids Newsletter Vol1 No.1, April 1995)

 
Fluorocarbon
PF5030
PF5040 
PF5050 (FC87)
PF5060 (FC72)
PF5070 (FC84)
PF5080 (FC104)
Chem.formula
C3F8
C4F10 
C5F12
C6F14
C7F16 
C8F18
Mean Mol.Wt.
188
238 
288
338
388 
438
Boiling point @1 atm [°C]
-37
-2
30
56
80 
101
Dens.[g/cm3]
1.35 @20°C 
1.52 @20°C
1.63 @25°C 
1.68 @25°C
1.73 @25°C 
1.77 @25°C
Liquid DynamicViscosity [10-3 Pa.s]
0.3 @0°C 
0.46 @20°C
0.45 @25°C 
0.67 @25°C
0.95 @25°C 
1.4 @25°C
Liquid Kinematic Viscosity [10-6 m2/s] 0.2 @ 20°C 0.3 @ 20°C 0.3 @ 25°C 
1.1 @-54°C
0.4 @ 25°C 
1.9 @-54°C
0.55 @25°C 
4.0 @-54°C
0.8 @25°C 
7.3 @-54°C
Surface Tens.[dy/cm]
4.3 @0°C 
7.4 @20°C
9.5 @25°C 
12.0 @25°C
13.0 @25°C 
15 @25°C
Vapour press.@-10°C [Torr]
                                    [bara]
2200
2.933
550
0.733
130
0.173
58
0.077
12
0.016
~8
~0.01
Latent Heat Vap. [J/mole]
                           [kJ/kg]
15717
84
22881
98
25281
88
29670
88
30815
79.5
40278
92
Specific Heat [kJ/kg.K] 1.05 1.05 1.05 1.05 1.05 1.05
Thermal conductivity [W/m.K] 0.056 0.057 0.060 0.063
Liquid Vol. Flow 
(90 W load) [cm3/s]
~0.8
~0.6
~0.6 
~0.6
~0.6
~0.5
Gas Vol. Flow 
(90 W load) [cm3/s]
~50
~120
~450 
~900
~3600
~4400
Liquid-Gas Expansion Fact 
@ -10°C 
~60
~210
~720 
~1500
~ 600
~8800
DeltaP max for 
DeltaT=0.5°C [mbar] 
~50
~15
~4.3
~1.4
~1.9
~0.27
 

CERN/P.BONNEAU/18/08/97