Solubility of 4,7-dioxo-7-(4-methylphenyl)heptanoic acid in some organic solvents

The temperature dependences of the solubility of 4,7-dioxo-7-(4-methylphenyl)heptanoic acid in organic solvents, namely methyl acetate, ethyl acetate, acetonitrile, acetone, n-propanol, iso-propanol, n-butanol and iso-butanol, were studied and the thermodynamic parameters of solubility were calculated. The enthalpy and entropy of melting of the acid under study were determined by differential thermal analysis. The thermodynamic parameters were recalculated to the generally accepted temperature of 298.15 K. The enthalpies and entropies of mixing of the components at 298.15 K were calculated. Keywords: solubility, enthalpy of dissolution, enthalpy of mixing, enthalpy of melting, 4,7-dioxo-7-(4-methylphenyl)heptanoic acid.