Excess viscosities of binary mixtures of chloroform and alcohols

Viscosities of mixtures of chloroform with methanol, ethanol, and 1-propanol were measured at 30, 38, and 46 o C. At least 5 mole fractions, covering the range, were studied for each liquid pair. Excess viscosities show the interesting result of being positive at some mole fractions and negative at other mole fractions