redfish - 31-12-2012 at 06:16
I was wondering, could it be possible to dehydrate chemicals through electrolysis? Sulfuric acid, for example. The electrolysis of dilute sulfuric
acid produces hydrogen and oxygen gas, because only the H3O+ and OH- ions react at the electrodes. This means that the water molecules lysed by the
acid are being lost from solution; is this not dehydration?
Ethanol/methanol might be a safer test subject for this process, as it is less reactive and therefore less dangerous. What do you think?
hissingnoise - 31-12-2012 at 07:14
Water can be boiled off from a solution of sulphuric acid but a high (>300°C) temperature is needed to reach 98%!
Patent on electrolytically concentrating dilute H2SO4 here!
redfish - 2-1-2013 at 13:51
sweet! So not only would it theoretically work, but it's been done before?