Studies in Newtonian Flow. V. Further Verification of the Free-Space Viscosity Equation

Abstract

Values of the limiting specific volume v₀ calculated by a trial‐and‐error procedure from n‐alkane viscosity data using the author's free‐space viscosity equation, $$\ln {\mathrm{\eta =B(v}}_0{\mathrm{/v}}_f\mathrm{)+}\ln A$$ , agree substantially with previously published values obtained by extrapolation of density data. Values of v₀ for mercury, sodium, benzene, carbon tetrachloride, dichlorodifluoromethane, and water were calculated by the same trial‐and‐error procedure. In all cases the free‐space equation gave a much better fit than the corresponding Andrade temperature equation, $$\ln \mathrm{\eta =B/T+}\ln A$$ .