The isothermal compressibility, kappa(T), and the isobaric thermal expansivity, alpha(P), have been measured at 298.15 K for hexan-2-ol, 2-methylpentan-1-ol, 2-methylpentan-2-ol, 3-methylpentan-2-ol, 4-methylpentan-2-ol, and 3-methylpentan-2-ol and also for 1-chlorohexane. The results are discussed in terms of two factors : (1) the substitution of the -H atom by -OH or -Cl groups and (2) the position of the hydroxyl or methyl groups on the linear or branched alcohol molecule.