The mobility of quinine ions, with some notes on the permeability of “cellophane.”

Abstract

Cellophane shows no selective ion permeability. The membrane potentials of HC1 and KC1 are practically the same as the diffusion potentials. This is also true of the potentials developed between two concns. of quinine hydro-chloride having a maximum concn. of 0.1 molar and ratios of 50:1, 20:1 and 10:1. The transport number of the anion is found to be 0.76, and the avg. mobility of the mixed quinine cations is 21.5.