The vapor pressure data for lauric (C12:0), myristic (C14:0), palmitic (C16:0), stearic (C18:0) and oleic (C18:1) acids were obtained using Differential Scanning Calorimetry (DSC). The adjustments made in the experimental procedure included the use of a small sphere (tungsten carbide) placed over the pinhole of the crucible (diameter of 0.8 mm), making it possible to use a faster heating rate than that of the standard method and reducing the experimental time. The measurements were made in the pressure range from 1333 to 9333 Pa, using small sample quantities of fatty acids (3 to 5 mg) at a heating rate of 25 K.min-1. The results showed the effectiveness of the technique under study, as evidenced by the low temperature deviations in relation to the data reported in the literature. The Antoine constants were fitted to the experimental data and shown to be suitable.
Compounds
#
Formula
Name
1
C12H24O2
dodecanoic acid
2
C14H28O2
tetradecanoic acid
3
C16H32O2
hexadecanoic acid
4
C18H36O2
octadecanoic acid
5
C18H34O2
(Z)-9-octadecenoic acid
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.