DIFFUSION AND KINETIC STUDIES IN THE PHOTO-CHEMICAL CHLORINATION OF TOLUENE.

A theoretical examination of the process of diffusion with a chemical reaction having a kinetic expression of first order with respect to the liquid reactant was made based on the steady-state absorption theory. Basic absorption rate equations and the parameters which affect the absorption rates were identified. The heterogeneous chlorination of the toluene side-chain was reduced to a pseudo-homogeneous reaction, under which condition the observed kinetic rate was observed to be of first order with respect to benzal chloride, and independent of any significant chlorine concentration.