Abstract

ROMERO, Carmen M.  and  CRUZ, Yadhi P. PARTIAL MOLAR VOLUME OF SOME ALKANOLAMINES IN WATER AT 298.15 K. Rev.Colomb.Quim. [online]. 2011, vol.40, n.3, pp.381-390. ISSN 0120-2804.

Densities of aqueous solutions of 3-amino-1-propanol, 2-amino-1-propanol, 3-amino-1,2-propanediol, and 1,3-diamino-2-propanol were measured at 298.15 K using the vibrating tube technique. The apparent molar volumes of the alkanolamines were determined as a function of composition from experimental data and the solute limiting partial molar volume was obtained through extrapolation. The results are discussed in terms of the effect of the number and the position of polar groups in the molecules.

Keywords : Partial molar volume; molecular interactions; group contribution; alkanolamines.