Molecular Product Formation in the Electron Radiolysis of Water

The time dependence of the formation of a molecular product in radiation chemistry is linked to the yield of the product formed in scavenging experiments by a Laplace transform relationship. Kinetic modeling with deterministic methods is used to show that such a relationship can be used to describe the molecular product (H2 and H2O2) formation following the fast-electron radiolysis of water and of aqueous solutions. Experimental yields are fitted using an appropriate empirical function, and the time dependence of the yields of the molecular products in the absence of a scavenger is derived using the Laplace relationship.