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

Printable Version  
Author: Subject: Calcium metal from calcium sulfate
HankTheHam
Harmless
*




Posts: 5
Registered: 7-3-2014
Member Is Offline

Mood: No Mood

[*] posted on 18-8-2023 at 07:01
Calcium metal from calcium sulfate


So, I was thinking about a method to make some calcium from calcium sulfate. First I would displace the calcium by adding sodium carbonate then reduce the calcium carbonate to calcium. Would this idea work? if so how? Would I need to preform a thermite reaction with magnesium?

[Edited on 18-8-2023 by HankTheHam]
View user's profile View All Posts By User
j_sum1
Administrator
********




Posts: 6320
Registered: 4-10-2014
Location: At home
Member Is Offline

Mood: Most of the ducks are in a row

[*] posted on 18-8-2023 at 07:47


Calcium is never going to be easy.

Your choices are reduction with lithium or high temperature electrolysis. Both with an inert atmosphere.

Look up a table of reduction potentials for an indication of how difficult this will be.
View user's profile View All Posts By User
clearly_not_atara
International Hazard
*****




Posts: 2787
Registered: 3-11-2013
Member Is Offline

Mood: Big

[*] posted on 18-8-2023 at 21:42


I suspect there might be a third option. Calcium salts are more soluble in many aprotic solvents than alkali metal salts. I figure you could try electrolysis of CaCl2 in propylene carbonate or something like that.



Quote: Originally posted by bnull  
you can always buy new equipment but can't buy new fingers.
View user's profile View All Posts By User

  Go To Top