Solubility data of isoniazid in supercritical carbon dioxide are important in selecting the most appropriate supercritical methods for pharmaceutical material processing, such as the micronization of isoniazid or the production of isoniazid composites. The solubility of isoniazid in supercritical carbon dioxide was measured using a dynamic analytical method at temperatures of (308, 311, and 313) K and pressures ranging from (13.0 to 18.5) MPa. The result showed that isoniazid solubility increased with the increase of pressure at an isothermal condition and it also increased with the increase of temperature. The experimental data were correlated using the Chrastil and Mendez-Santiago and Teja models. The calculated results show good agreement with the experimental data.
Compounds
#
Formula
Name
1
C6H7N3O
isonicotinic acid hydrazide
2
CO2
carbon dioxide
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.
Type
Compound-#
Property
Variable
Constraint
Phase
Method
#Points
POMD
1
2
Mole fraction - 1 ; Fluid (supercritical or subcritical phases)
Temperature, K; Fluid (supercritical or subcritical phases)
Pressure, kPa; Fluid (supercritical or subcritical phases)