woelen - 8-3-2010 at 12:35
I can imagine that most of the members over here have done simple electrolysis experiments with graphite rods or even copper wires, using solutions of
NaCl or dilute H2SO4 for the electrolysis.
In these experiments hydrogen is formed at the cathode and the most interesting things happen at the anode (e.g. formation of Cl2-gas, formation of
metal-salt by dissolving the anode, formation of O2-gas). In my set of experiments, things are reversed. Interesting things happen at the cathode,
such as formation of iodine, bromine, sulphur, selenium. I want to demonstrate that electrolysis gives a powerful tool for redox-reactions, also
redox-reactions which can be hard to carry out in chemical ways.
This set of experiments is just for fun _and_ for giving some more theoretical understanding of electrolysis and redox-reactions in general, but I
liked it quite a lot when I saw the effects happening before my eyes.
http://woelen.homescience.net/science/chem/exps/electrolysis...
The_Davster - 8-3-2010 at 13:21
Great as always!
With your photography ability I bet you could get some great images of this beautiful process. https://www.sciencemadness.org/whisper/viewthread.php?tid=53...