The thermodynamic functions of ionisation of 4-substituted 2,6-dimethylphenols

Thermodynamic acidity constants of the ionisation of 4-methyl, 4-^-butyl, 4-bromOj 4-acetyl, 4-cyano, 4-formyl, 4-nitroso, 4-nitro 2,6-dimethylphenol, 2,6-dimethylphenol and £-hydroxyacetophenone have been measured by a combined e.m.f. - spectrophomometric technique within the temperature range 5 - 60°C. The standard thermodynamic functions: free energy, enthalpy, entropy and heat capacity have been calculated at 25^C.