Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Electrolytic dehydration
redfish
Harmless
*




Posts: 9
Registered: 31-12-2011
Location: Boxford, MA
Member Is Offline

Mood: Anhydrous

smile.gif posted on 31-12-2012 at 06:16
Electrolytic dehydration


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?
View user's profile View All Posts By User
hissingnoise
International Hazard
*****




Posts: 3940
Registered: 26-12-2002
Member Is Offline

Mood: Pulverulescent!

[*] posted on 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!

View user's profile View All Posts By User
redfish
Harmless
*




Posts: 9
Registered: 31-12-2011
Location: Boxford, MA
Member Is Offline

Mood: Anhydrous

[*] posted on 2-1-2013 at 13:51


sweet! So not only would it theoretically work, but it's been done before?
View user's profile View All Posts By User

  Go To Top