Kinetics of chromium(III) transport through a liquid membrane containing DNNSA as a carrier.

International journal of molecular sciences

PubMedID: 19399232

Religa P, Gawronski R, Gierycz P. Kinetics of chromium(III) transport through a liquid membrane containing DNNSA as a carrier. Int J Mol Sci. 2009;10(3):964-75.
Kinetics of Cr(III) ions transport through a bulk liquid membrane containing dinonylnaphthalenesulfonic acid (DNNSA) as a carrier, flowing over aqueous phases, has been examined. Special attention has been paid to the effect of the membrane's velocity flow on the chromium concentration decrease in a feed phase. For the description of relationships of chromium(III) concentration in particular phases with the time, a model based on the assumption of consecutive first-order reactions was proposed. Satisfactory compatibility of experiments and model results have been obtained both for the membrane flow velocities below 0. 0034 m. s(-1) when the interfaces begin to fluctuate slightly and for low initial Cr(III) concentration in the feed phase.