M. Duffey, D. F. Evans, E. Cussler
1978
Citations
0
Influential Citations
45
Citations
Journal
Journal of Membrane Science
Abstract
Abstract The flux of tetrabutylammonium nitrate (Bu 4 NNO 3 ) across a liquid membrane of n-heptyl cyanide varies with the salt concentrations in dilute solution, but with the concentration squared in more concentrated solution. The results are consistent with a mechanism which includes parallel diffusion of ions and ion pairs. This type of behavior, which will be common in homogeneous membranes of low dielectric constant, is a form of facilitated diffusion in which the salt acts as its own carrier.