Triflic Acid
Hazard to Others
Posts: 486
Registered: 27-9-2020
Member Is Offline
Mood: Slowly Oxidizing into Oblivion
|
|
What electrode to use for sodium metal cell?
Am going to run a synthesis of sodium from a paper. The paper uses a platinum wire electrode for both anode and cathode. Only have one platinum plated
titanium electrode. So, what metal should I use for the cathode? Also, it would be nice if someone could tell me where to find said metal.
There wasn't a fire, we just had an uncontrolled rapid oxidation event at the power plant.
|
|
|
macckone
International Hazard
Posts: 2159
Registered: 1-3-2013
Location: Over a mile high
Member Is Offline
Mood: Electrical
|
|
Need more information, but generally nickel or graphite is used in commercial molten salt applications.
If you are using a lower temperature eutectic, you might be able to use stainless steel or titanium.
When asking for advice, it is usually good practice to at least post a reference to the paper in question.
Or as much information about the procedure as possible.
|
|
|
Triflic Acid
Hazard to Others
Posts: 486
Registered: 27-9-2020
Member Is Offline
Mood: Slowly Oxidizing into Oblivion
|
|
Room temp, sodium chloride, in an organic solvent of propylene carbonate. The paper is called ELECTRODEPOSITION OF THE ALKALI METALS FROM PROPYLENE
CARBONATE
I think I'll go with stainless steel as the electrode. I'll just "borrow" some from the kitchen utensils. No one will notice 
There wasn't a fire, we just had an uncontrolled rapid oxidation event at the power plant.
|
|
|
macckone
International Hazard
Posts: 2159
Registered: 1-3-2013
Location: Over a mile high
Member Is Offline
Mood: Electrical
|
|
For that stainless steel is fine.
|
|
|
metalresearcher
National Hazard
Posts: 731
Registered: 7-9-2010
Member Is Offline
Mood: Reactive
|
|
Unlike aqueous solutions, electrolyzing molten lye or NaCl solution just needs simple carbon anode and stainless steel cathode. When electrolyzing
lye, even stainless steel anode suffices.
But watch out, lye of over 300 C is very nasty stuff, use a full face shield and leather gloves and a leather apron !
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
