
The Antoine equation: log
p
*
(bar)
CT
B
A
+
−=
)K(
.
Note: Choose constants that are appropriate for the given temperature range.
Antoine Equation Constants for Selected Substances
Substance Temperature Range, K A B C
Acetaldehyde 293.3 - 377.4 3.68639 822.894 -69.899
272.9 - 307.5 5.1883 1637.083 22.317
Acetic Acid 290.26 - 391.01 4.68206 1642.54 -39.764
Acetone 259.16 - 507.60 4.42448 1312.253 -32.445
Ammonia 164.0 - 239.5 3.18757 506.713 -80.78
239.5 - 371.4 4.86886 1113.928 -10.409
Benzene 287.70 - 354.07 4.01814 1203.835 -53.226
333.4 - 373.4 4.72583 1660.652 -1.461
421.56 - 554.7 4.60362 1701.073 20.806
Appendix I
A NTOINE
EQUATION CONSTANTS