Kinetics of Acid Catalyzed Solvolysis of Amyl Methanoate Formate in Water-ethylene Glycol (EG) Solvent

Abstract

The kinetics of the hydrolysis of Amyl Methanoate in water-EG media are reported. The rate constant decreases with gradual addition of organic co-solvent with increasing temperature inferred the salvation in initial state and desolvation in transition state of reaction media. Activation energy of the reaction media has also been explained in light of salvation and desolvation of initial and transition states to different extant. Effect of ionic strength and [H+] ion on the reaction on the rate has also been studied and it is concluded that acid catalised hydrolysis of amyl methanoate is ion- dipolar reaction and it follows AAC2 mechanistic pathways of water-EG media. With increase of solvent composition (30 to 70%) the number of water molecule associated with transition state increase with rise in temperature (20 to 40°c) which attributes to the fact that equilibrium of water molecule by addition of EG, is shifted from dense form to bulky form with rise in temperature.