A COMPARATIVE-STUDY OF THE KINETICS AND MECHANISM OF SOLID-SOLID REACTION BETWEEN AGI AND SOME MIXED MERCURY HALIDES

The reaction of Agl with mercuric chlorobromide and mercuric chloroiodide in solid state was studied by X-ray diffraction, chemical analysis, and electrical conductivity measurements. The kinetics of the reaction has been studied by a visual technique. The data for the lateral diffusion best fit the equation Xn = kt. Both of the reactions are diffusion controlled and proceed via vapor phase diffusion of the mixed mercury halides. The reaction with HgClI is somewhat simple that with HgClBr is a complex one. © 1993 Academic Press, Inc.