The proton spin-lattice relaxation time and self-diffusion Coefficient of water in concentrated aqueous ZnCl, solutions have been measured as a function of salt concentration and temperatures. The intermolecular and intramolecular contributions of the dipolar interactions to the relaxation rate were determined separately with the aid of the self-diffusion data. The present data indicate that the translational motion of water molecules in ZnCl, solutions is retarded more significantly than their rotational motion with decreasing water content.3258