Studies on viscosity behaviour of concentrated alkali halides in aqueous urea solution

Understanding the electrochemistry of “water-in-salt” electrolytes: basal plane highly ordered pyrolytic graphite as a model system

“…This exponential dependence of viscosity on 1 : 1 alkali metal halide electrolyte concentration was also reported by Abdulagatov et. al., who found that the viscosity of an aqueous NaI solution increased exponentially up to about 3 cP at the maximum concentration of $11 m. 46,47 However for very high concentrations of electrolyte (>10 M), the Stokes-Einstein equation predicts a much higher viscosity attenuation than the measurements via the Ubblohde viscometer indicate, i.e. the viscosity increased by two orders of magnitude (to $417 cP, at 17 M KF).…”