Antoine Constants

Supplemental Table: Properties of Pure Species Vapor pressure (P sat ) by the Antoine Equation: ln P sat /kPa = A −

B t/◦ C + C

Latent heat of vaporization at the normal boiling point (
Hn ), and normal boiling point (tn )

Name

Formula

Acetone Acetic acid Acetonitrile* Benzene iso-Butane n-Butane 1-Butanol 2-Butanol* iso-Butanol tert-Butanol Carbon tetrachloride Chlorobenzene 1-Chlorobutane Chloroform Cyclohexane Cyclopentane n-Decane Dichloromethane Diethyl ether 1,4-Dioxane n-Eicosane Ethanol Ethylbenzene Ethylene glycol* n-Heptane n-Hexane Methanol Methyl acetate Methyl ethyl ketone Nitromethane* n-Nonane iso-Octane n-Octane n-Pentane Phenol 1-Propanol 2-Propanol Toluene Water o-Xylene m-Xylene p-Xylene

C3 H6 O C2 H4 O2 C2 H3 N C6 H6 C4 H10 C4 H10 C4 H10 O C4 H10 O C4 H10 O C4 H10 O CCl4 C6 H5 Cl C4 H9 Cl CHCl3 C6 H12 C5 H10 C10 H22 CH2 Cl2 C4 H10 O C4 H8 O2 C20 H42 C2 H6 O C8 H10 C2 H6 O2 C7 H16 C6 H14 CH4 O C3 H6 O2 C4 H8 O CH3 NO2 C9 H20 C8 H18 C8 H18 C5 H12 C6 H6 O C3 H8 O C3 H8 O C7 H8 H2 O C8 H10 C8 H10 C8 H10

Parameters for Antoine Eqn. A† B C 14.3145 15.0717 14.8950 13.7819 13.8254 13.6608 15.3144 15.1989 14.6047 14.8445 14.0572 13.8635 13.7965 13.7324 13.6568 13.9727 13.9748 13.9891 14.0735 15.0967 14.4575 16.8958 13.9726 15.7567 13.8622 13.8193 16.5785 14.2456 14.1334 14.7513 13.9854 13.6703 13.9346 13.7667 14.4387 16.1154 16.6796 13.9320 16.3872 14.0415 14.1387 14.0579

2756.22 3580.80 3413.10 2726.81 2181.79 2154.70 3212.43 3026.03 2740.95 2658.29 2914.23 3174.78 2723.73 2548.74 2723.44 2653.90 3442.76 2463.93 2511.29 3579.78 4680.46 3795.17 3259.93 4187.46 2910.26 2696.04 3638.27 2662.78 2838.24 3331.70 3311.19 2896.31 3123.13 2451.88 3507.80 3483.67 3640.20 3056.96 3885.70 3358.79 3381.81 3331.45

228.060 224.650 250.523 217.572 248.870 238.789 182.739 186.500 166.670 177.650 232.148 211.700 218.265 218.552 220.618 234.510 193.858 223.240 231.200 240.337 132.100 230.918 212.300 178.650 216.432 224.317 239.500 219.690 218.690 227.600 202.694 220.767 209.635 232.014 175.400 205.807 219.610 217.625 230.170 212.041 216.120 214.627

Temp. Range ◦C


Hn kJ/mol

tn ◦C

−26 — 77 24 — 142 −27 — 81 6 — 104 −83 — 7 −73 — 19 37 — 138 25 — 120 30 — 128 10 — 101 −14 — 101 29 — 159 −17 — 79 −23 — 84 9 — 105 −35 — 71 65 — 203 −38 — 60 −43 — 55 20 — 105 208 — 379 3 — 96 33 — 163 100 — 222 4 — 123 −19 — 92 −11 — 83 −23 — 78 −8 — 103 56 — 146 46 — 178 2 — 125 26 — 152 −45 — 58 80 — 208 20 — 116 8 — 100 13 — 136 0 — 200 40 — 172 35 — 166 35 — 166

29.10 23.70 30.19 30.72 21.30 22.44 43.29 40.75 41.82 39.07 29.82 35.19 30.39 29.24 29.97 27.30 38.75 28.06 26.52 34.16 57.49 38.56 35.57 50.73 31.77 28.85 35.21 30.32 31.30 33.99 36.91 30.79 34.41 25.79 46.18 41.44 39.85 33.18 40.66 36.24 35.66 35.67

56.2 117.9 81.6 80.0 −11.9 −0.5 117.6 99.5 107.8 82.3 76.6 131.7 78.5 61.1 80.7 49.2 174.1 39.7 34.4 101.3 343.6 78.2 136.2 197.3 98.4 68.7 64.7 56.9 79.6 101.2 150.8 99.2 125.6 36.0 181.8 97.2 82.2 110.6 100.0 144.4 139.1 138.3

Based primarily on data presented by B. E. Poling, J. M. Prausnitz, and J. P. O’Connell, The Properties of Gases and Liquids, 5th ed., App. A, McGraw-Hill, New York, 2001. *Antoine parameters adapted from Gmehling et al. See footnote 2, p. 764. † Antoine parameters A are adjusted to reproduce the listed values of t . n