The excess volume of mixing for 1-aminobutane, 2-aminobutane, 1-amino-2-methylpropane and 2-amino-2-methylpropane with chloroform were determined at 30° by the density method. TheVE were negative for all the systems and showed the following order: 2-amino-2-methylpropane>2-aminobutane>1-amino-2-methylpropane>1-aminobutane. The negativeVE were attributed to complex formation between the amine and chloroform molecules owing to H bonding, while the particular trend was attributed to the decreasing degree of self-association of amine isomers.
