VISCOSITY OF SALTY WATER

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Seminar
Speaker
Fyl Pincus
Date
16/03/2015 - 14:00
Place
Physics Department (Building 202), room 104
Abstract

For over 90 years there has been an unexplained puzzle associated with the viscosity of dilute aqueous salt solutions. More specifically, there is a contribution to the viscosity which is linear in the salt concentration and very ion specific for monovalent salts. This is usually discussed in terms of the Jones-Dole coefficient (B) which is the amplitude of the linear term in the concentration. The A coefficient was derived by Falkenhagen and Onsager many years ago in terms of the Debye-Hückel theory for electrolytes. We shall discuss our current understanding of the Jones-Dole coefficient in the context of ionic hydration.