Salting coefficients of carboxylic acids in various saline media.
Reported partition coefficients and solubility data at 25 degrees C were used to determine the salting coefficients of acetic, benzoic, o-chlorobenzoic, m-chlorobenzoic, p-chlorobenzoic, o-hydroxybenzoic, m-hydroxybenzoic and p-hydroxybenzoic acids in various saline media. Coefficients were calculated on the molarity and molality scales. Except for acetic acid, which exhibited a negative coefficient in two of the 29 electrolytes used, all the acids were found to have positive values in the studied media. Consequently, the presence of a salt decreases the solubility of these acids.
Barriada
J L
JL
Departamento de Química Física e Ingeniería Química I, Facultad de Ciencias, Universidad de La Coruña, Campus da Zapateira, E-15071 La Coruña, Spain.
Brandariz
I
I
Sastre De Vicente
M E
ME
D002264:Carboxylic Acids / Q000737:chemistry*; D004573:Electrolytes; D008962:Models, Theoretical; D012965:Sodium Chloride / Q000737:chemistry; D012995:Solubility; D013696:Temperature; D014867:Water / Q000737:chemistry
D002264:Carboxylic Acids; D004573:Electrolytes; D014867:Water; D012965:Sodium Chloride