[Pbandjelly]

Does anyone know of a good way to make iron oxide besides electrolysis – that is the method I am curling you currently usingbut I only can make about a tablespoon every 12 hours which is a little slow for any realistic amount

[Hunter2]

Add to Iron-III salt some hydroxide, Iron hydroxide will precipitate. Filter this and dry it at high temperature The iron hydroxide will convert to The iron oxide.

[Pbandjelly]

This is the exact process I use I just find it to inefficient and wondered if anyone had a better method :/

[Arkcon]

Leave some iron in a moist environment until it rusts?  Not particularly fast, but you can start with as much iron as you want, and its a hands off process.  How much iron oxide do you really need?  What is your starting material -- how finely divided is your iron?

[Pbandjelly]

I can't test the quality of the iron oxide I'm getting, but I'm using what appeared to be iron bolts, they might have some allot in it to them but I figured that will not be get up in the process

[arbyflask]

Steel wool, the finest grade you can get.  Cover in 12% hydrogen peroxide, sold as "40 volume developer" at beauty shops.  Add a tablespoon of table salt and stand back, wear your goggles, because it will go exothermically to yellow iron hydroxide which you can collect and dry on a filter.  I like to do this reaction in disposable plastic cups, so I don't have to clean a beaker, but I place the cups inside a beaker so that if the cup does melt through (hasn't happened yet) I won't have permanent rust crud all over the bench.

Bake the iron hydroxide in a crucible over a gas flame for an hour and you will have gorgeous pigment-grade red iron (III) oxide.