Acentric Factor and Dipole Moment

w = Pitzer Acentric Factor = - log10 (Pr) - 1.0  where Pr is at Tr = 0.7
Pr = P/Pc , Tr = T/Tc, Pc= critical pressure, Tc=critical temperature
1 Debye = 10-18(dyn.cm4)1/2 = 3.162x10-25(J.m3)1/2
Name w, Acentric Factor

Dipole Moment, debye
ACETALDEHYDE 0.31 2.51
ACETIC ACID 0.447 0.74
ACETONE 0.304 2.86
ACETYLENE 0.19 0.00
AMMONIA 0.25 1.48
BENZENE 0.212 0.00
BUTADIENE-1,2 0.255 0.40
BUTADIENE-1,3 0.195 0.00
BUTANE 0.199 0.05
BUTYL ACETATE 0.412 1.80
CARBON DIOXIDE 0.268 0.18
CARBON MONOXIDE 0.053 0.13
CARBON TETRACHLORIDE 0.186 0.00
CHLORINE 0.09 0.23
CHLOROFORM 0.218 1.11
CHLOROMETHANE 0.153 1.94
DICHLOROMETHANE 0.199 1.55
DIETHYL ETHER 0.281 1.30
ETHYL ACETATE 0.362 1.88
ETHYL ALCOHOL 0.644 1.73
ETHYLBENZENE 0.302 0.37
ETHYLENE 0.089 0.00
ETHYLENE GLYCOL 0.175 2.30
ETHYLENE OXIDE 0.202 1.83
FORMIC ACID 0.445 1.20
GLYCEROL 0.591 2.68
HEPTANE 0.349 0.00
HEXANE 0.299 0.05
HYDROGEN 0.205 0.03
ISOPROPYL ALCOHOL 0.665 1.80
ISOPROPYLBENZENE 0.326 0.38
M-XYLENE 0.325 0.35
METHANE 0.012 0.02
METHYL ACETATE 0.326 1.70
METHYL ALCOHOL 0.556 1.80
N-BUTYL ALCOHOL 0.593 1.61
N-BUTYRIC ACID 0.601 0.94
N-PROPYL ALCOHOL 0.623 1.75
NITRIC OXIDE 0.588 0.14
NITROGEN 0.039 0.00
NITROGEN DIOXIDE NA 0.32
NITROUS OXIDE 0.165 0.16
O-XYLENE 0.31 0.54
OCTANE 0.398 0.00
OXYGEN 0.033 0.00
P-XYLENE 0.32 0.10
PENTANE 0.251 0.37
PHENOL 0.442 1.50
PHOSGENE 0.205 1.13
PROPANE 0.153 0.00
PROPYLENE 0.144 0.36
STYRENE 0.263 0.56
SULFUR DIOXIDE 0.256 1.61
SULFUR TRIOXIDE 0.481 0.00
TOLUENE 0.263 0.43
WATER 0.334 1.84
NA - Not Available