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-   -   How is the charge transfered through a diaphragm in a galvanic/electrolytic cell? (http://www.physicsforums.com/showthread.php?t=568544)

asym Jan18-12 02:10 AM

How is the charge transfered through a diaphragm in a galvanic/electrolytic cell?
 
In basic chemistry courses you will learn that diaphragm prevents mixing of solutions between half-cells while maintaining ionic conductivity. What exactly carries charge through diaphragm if it's neither electrons, nor ions from the solution? What is the molecular mechanism behind that?

Borek Jan31-12 03:14 AM

Re: How is the charge transfered through a diaphragm in a galvanic/electrolytic cell?
 
Ions do travel through the membrane. However, you usually design the system in such a way that traveling ions are those that will not react directly.

asym Jan31-12 03:23 AM

Re: How is the charge transfered through a diaphragm in a galvanic/electrolytic cell?
 
Quote:

Quote by Borek (Post 3737069)
Ions do travel through the membrane. However, you usually design the system in such a way that traveling ions are those that will not react directly.

So it's some kind of (double) ion exchanger?


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