Solubility of niflumic acid and celecoxib in supercritical carbon dioxide

- Solubility data of niflumic acid and celecoxib in supercritical carbon dioxide were measured.
- The solubilities are in the range of 10−6-10−5 in mole fraction.
- Both Chrastil and Mendez-Santiago-Teja models correlate satisfactorily the solubility data.
- Peng-Robinson equation with vdW-2 mixing rules also correlates well the solubility data.