Self- and Impurity Diffusion in Anthracene Single Crystals

Abstract

A radiotracer study of self- and impurity diffusion in anthracene single crystals of high purity has been made using anthracenc-9-14C, anthraquinone-9-,4C and HO3H as tracers. Lattice self- diffusion is best described by an equation of the form and probably occurs by a vacancy mechanism. Anthraquinone diffuses in a manner similar to the host. Water diffuses more rapidly but has a 80lub,lity in anthracene. It is concluded that bulk oxidation will be small and will have little effect on the evaluation of reliable self-diffusion coefficients.