Abstract

Linewidth, angular dissymmetry, and hydrodynamic-shear-viscosity data of a critical binary-liquid mixture of isobutyric acid in water compares well with the modified mode-mode coupling theory of Kawasaki in the range $11\ensuremath{\ge}K\ensuremath{\xi}\ensuremath{\ge}0.0067$ after corrections for vertex, non-local shear viscosity and deviation of the Ornstein-Zernike correlation function. Deviations between experiments and theory in the critical region ($K\ensuremath{\xi}>4$) suggest needs for further improvements in theory at large values of $K\ensuremath{\xi}$ as well as measurements of the hydrodynamic shear viscosity at small temperature distances from the critical mixing point.

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