Kinetic Study of Hydrolysis of N-Salicylidene-omethylaniline Spectrophotometrically

Phystcal Chemistry Laboratory, Instltute of Sctence, Bombay-400 032
Manuscript received 24 October 1992, revised 14 Ocrober 1992, accepted 7 December 1993

Kinetics of hydrolysis of the Schiff base, N-salicyIidene-o-methylaniline (HL) have been studied in the pH range 3.57-12.65 in the temperature range 29-45º. A rate profile diagram of pH vs rate constant, shows a rate minimum in the pH range 6.30-12.00 and reaches a plateau at pH > 12.30. Suitable reaction mechanisms ha\'e been suggested for the hydrolyses of the Schiff base in acidic, neutral and basic media. From the effect of temperature on the rate, various thermodynamic parameters have been evaluated.