Excess molar volumes, V-m(E), at T = 298.15 K, and kinematic viscosities, v, at T = 303.15 K, have been measured for binary liquid mixtures of cyclohexanone (C6H10O) + dichloromethane (CH2Cl2), + trichloromethane (CHCl3), + 1,2-dichloroethane (CH2ClCH2Cl), + trichloroethene (CHClCCl2), + 1,1,1-trichloroethane (CCl3CH3), and + cyclohexane (c-C6H12) The values of v and V-m(E) have been fitted in appropriate equations using a least-squares method. VE,has been found to be negative throughout the entire range of composition for mixtures of C6H10O + CH2Cl2, + CHCl3, + CHClCCl2, and + CCl3CH3, and positive for C6H10O + c-C6H12. For C6H10O + CH2ClCH2Cl, V-m(E) has been found to be positive at lower mole fractions of C6H10O, and negative at higher mole fractions. The analysis has shown that McAllister＇s approach correlates v of the present mixtures throughout the entire composition range to a significantly high degree of accuracy.