Quadrupole relaxation in solutions of electrolytes

Abstract
Nuclear resonance line widths are recorded for 79Br, 81Br and 127I in aqueous solutions of salts of the alkali metals and alkaline earth metals. The line width is determined by quadrupole relaxation and is shown to depend on bulk viscosity and on salt concentration according to an equation Δv = + Bcη, where A and B are constants. B is close to zero for strongly hydrated ions, but significant for K+, Rb+ and Cs+. At very high concentration the equation no longer holds.