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Ma H.,Beijing University of Chemical Technology | Qu Y.,Beijing University of Chemical Technology | Zhou Z.,Beijing University of Chemical Technology | Wang S.,Beijing University of Chemical Technology | Li L.,Shijiazhuang Hejia Health Products Co.
Journal of Chemical and Engineering Data | Year: 2012

The solubility of thiotriazinone in water, methanol, ethanol, water + methanol, and water + ethanol has been measured under temperatures ranging from (283 to 330) K with a laser technique. The results of these measurements were correlated with semiempirical equations. The calculated results have showed fine representativity of experimental data. The stepwise regression method was used to simplify the modified Jouyban-Acree equation. © 2012 American Chemical Society.


Wang S.,Beijing University of Chemical Technology | Song Z.,Beijing University of Chemical Technology | Wang J.,Beijing University of Chemical Technology | Dong Y.,Shijiazhuang Hejia Health Products Co. | Wu M.,Shijiazhuang Hejia Health Products Co.
Journal of Chemical and Engineering Data | Year: 2010

Using a laser monitoring technique, the solubility of ibuprofen in ethanol, 1-propanol, 1-butanol, 1-pentanol, 2-propanol, 2-methyl-1-propanol, 3-methyl-1-butanol, acetone, and ethyl acetate was determined in the temperature range from (283.15 to 318.15) K. The solubility data were correlated with a semiempirical equation. The calculated results of this are proven to show a fine representation of experimental data. © 2010 American Chemical Society.


Zhou Z.,Beijing University of Chemical Technology | Qu Y.,Beijing University of Chemical Technology | Wang J.,Beijing University of Chemical Technology | Wang S.,Beijing University of Chemical Technology | And 2 more authors.
Journal of Chemical and Engineering Data | Year: 2011

The solubilities of (Z)-2-(2-aminothiazol-4-yl)-2-methoxyiminoacetic acid in water and alcoholic solvents (methanol, ethanol, 1-propanol, glycol) and the combination of water + alcohols (methanol, ethanol, glycol) of binary mixtures have been experimentally measured in the temperature range from (282 to 330) K using a laser monitoring observation technique. The experimental solubilities in the pure solvents were correlated by modified Apelblat equation. A hybrid model proposed based on Apelblat equation and Jouyban-Acree model was used to correlate the solubility of solute with the variation of both temperature and initial composition of the binary solvent mixtures. With these models the maximum mean percentage deviation is 5.21. © 2011 American Chemical Society.

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