Study of kinetics is very important in chemical process industries. Esterification process is very common in chemical industries in the literature. There are number of industrial application of Esterification which is discussed and the advantage of studying the kinetics of any Esterification reaction is that 1) All these reactions are empirically found to be of second order. 2) All these reactions have similar mechanism. In this research, the study of kinetics of Esterification reaction involving acetic acid and n-Butanol as reactant using sulfuric acid as a catalyst. Various experimental runs using laboratorial batch reactor have been conducted applying different combinations of temperatures, mole ratio and catalyst concentrations and finally a kinetic expression, as a function of these parameters, has been investigated.