Abstract

The Extended Hildebrand Solubility Approach (EHSA) was applied in the present work to evaluate the solubility of the analgesic drug acetaminophen (paracetamol) in polyethylene glycol 400 + water mixtures at 298.15 K. An acceptable correlative capacity of EHSA was found using a regular polynomial model in order four (overall deviation below 0.7%), when the W interaction parameter is related to the solubility parameter of the mixtures. Thus, the deviations obtained in the estimated solubility with respect to experimental solubility were lower than those obtained directly by means of an empiric regression of the experimental solubility as a function of the mixtures' solubility parameters (close to 1.5%).

Details

Title
Solubility of acetaminophen in polyethylene glycol 400 + water mixtures according to the extended Hildebrand solubility approach
Author
Ahumada, Edgar; Delgado, Daniel; Fleming Martínez
Pages
433-448
Section
Fisicoquímica e Inorgánica
Publication year
2012
Publication date
2012
Publisher
Universidad Nacional de Colombia
ISSN
01202804
e-ISSN
23573791
Source type
Scholarly Journal
Language of publication
Spanish
ProQuest document ID
1677178884
Copyright
Copyright Universidad Nacional de Colombia 2012