Search Results

Experimental and Predicted Solubilities of 3,4-Dimethoxybenzoic Acid in Select Organic Solvents of Varying Polarity and Hydrogen-bonding Character

Description: This article discusses the experimental and predicted solubilities of 3,4-dimethoxybenzoic acid in select organic solvents of varying polarity and hydrogen-bonding character.
Date: 2013
Creator: Bowen, Kaci R.; Stephens, Timothy W.; Lu, Helen; Satish, Kalpana; Shan, Danyang; Acree, William E. (William Eugene) et al.
Item Type: Article
Partner: UNT College of Arts and Sciences

Thermodynamics of the Abraham General Solvation Model: Solubility and Partition Aspects

Description: Experimental mole fraction solubilities of several carboxylic acids (2-methoxybenzoic acid, 4-methoxybenzoic acid, 4-nitrobenzoic acid, 4-chloro-3-nitrobenzoic acid, 2-chloro-5-nitrobenzoic acid,2-methylbenzoic acid and ibuprofen) and 9-fluorenone, thianthrene and xanthene were measured in a wide range of solvents of varying polarity and hydrogen-bonding characteristics. Results of these measurements were used to calculate gas-to-organic solvent and water-to-organic solvent solubility ratios, which were then substituted into known Abraham process partitioning correlations. The molecular solute descriptors that were obtained as the result of these computations described the measured solubility data to within an average absolute deviation of 0.2 log units. The calculated solute descriptors also enable one to estimate many chemically, biologically and pharmaceutically important properties for the ten solutes studied using published mathematical correlations.
Date: August 2006
Creator: Stovall, Dawn Michele
Partner: UNT Libraries