making rust

[the guy]

i saw this video on how to make rust:

 

i was just wondering what happens to the sodium in this reaction?

[insane_alien]

reacts with the water to form sodium hydroxide which is re-elecrolysed then reacts again to form sodium hydroxide and so on.

[the guy]

so in the end you end up with rust and sodium hydroxide?

[insane_alien]

yep

[the guy]

if i were to try and use this with powdered aluminium in a thermite demonstration would it affect the reaction?

---

Merged post follows:

Consecutive posts merged

would water not containing salt work?

[the guy]

ill ask again, because noone has answered and i am still wondering, would this work with pure water?