To try everything Brilliant has to offer—free—for a full 30 days, visit http://brilliant.org/ScrapScience/ The first 200 of you will get 20% off Brilliant’s annual premium subscription. For no real reason other than wanting to try an interesting electrolysis experiment, we try turning a piece of iron into iron oxide. This is done by using metallic iron as an anode in an electrolytic cell, producing iron hydroxide, which can be dehydrated to form high-quality iron oxide. I really don't have a reason for doing this, and I'm not really interested in thermite or iron chemistry at this stage, but it was a fun and easy process nonetheless. This video was sponsored by Brilliant.