[skatebiker]

I tried to electrolyze molten CaCl2 with a welder and a rectifier. It worked and I saw some sparks appearing at the cathode (right in the clip below) which is presumably burning Ca (or Na when it contains some sodium salt). Is there a way to isolate it ?
As a source I used moisture capturing pellets which is (impure) CaCl2.

http://www.youtube.com/watch?v=2VJE8-jjl_A