Shear Viscosity of 3-Methylpentane—Nitroethane near the Critical Point

Shear viscosity coefficients for a mixture of 3‐methylpentane—nitroethane of critical composition were determined over the temperature range ${\text{6×10}}^{\text{−6}}{\text{≤ ε ≤ 2×10}}^{\text{−2}}$ by an improved capillary viscometer. The data were analyzed by alternate procedures both of which give strong support to the view that the viscosity singularity is indeed very weak over a wide temperature range.