Estimation of the effect of NaCl on the solubility of organic compounds in aqueous solutions.
The Setschenow constant, K(salt), of a nonelectrolyte in a NaCl solution is shown to be related to the logarithm of its octanol-water partition coefficient, log K(ow), determined by K(salt) = A log K(ow) + B, where K(ow) is the octanol-water partition coefficient of the solute and the coefficients A and B are constants. The values of A and B were empirically determined from literature data for 62 organic compounds and validated for a test set of 15 compounds including several drugs.
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College of Pharmacy, The University of Arizona, Tucson, Arizona 85721, USA.
El-Sayed
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Sanghvi
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Yalkowsky
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D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002851:Chromatography, High Pressure Liquid; D007700:Kinetics; D000442:Octanols / Q000737:chemistry; D009930:Organic Chemicals / Q000737:chemistry*; D012965:Sodium Chloride / Q000737:chemistry*; D012995:Solubility; D012996:Solutions; D012997:Solvents; D014867:Water
D000442:Octanols; D009930:Organic Chemicals; D012996:Solutions; D012997:Solvents; D014867:Water; D012965:Sodium Chloride