Accession Number : ADA259592
Title : Transport of Zn(OH4)(2-) Ions Across a Polyolefin Microporous Membrane
Descriptive Note : Technical rept.
Corporate Author : NORTHERN ILLINOIS UNIV DE KALB DEPT OF CHEMISTRY
Personal Author(s) : Krejci, Ivan ; Vanysek, Petr ; Trojanek, Antonin
Report Date : 22 Dec 1992
Pagination or Media Count : 22
Abstract : Transport of Zn(OH)(2-)4 ions through modified microporous polypropylene membranes was studied using polarography and conductometry. Soluble Nafion as an ion exchange modifying agent was applied to the membrane by several techniques. The influence of Nafion and surfactant on transport of zinc ions through the membrane was studied. A relationship between membrane impedance and the rate of Zn(OH)(2-)4 transport was found. The found correlation between conductivity, ion permeability and Nafion coverage suggests a suitable technique of membrane preparation to obtain desired properties.
Descriptors : *TRANSPORT , *MEMBRANES , *ION EXCHANGE , *HYDROXIDES , *OLEFIN POLYMERS , IONS , PERMEABILITY , PREPARATION , CONDUCTIVITY , POLAROGRAPHY , IMPEDANCE , EXCHANGE , SURFACE ACTIVE SUBSTANCES , ZINC , RATES , CORRELATION , POLYPROPYLENE
Subject Categories : Inorganic Chemistry
Electricity and Magnetism
Atomic and Molecular Physics and Spectroscopy
Distribution Statement : APPROVED FOR PUBLIC RELEASE