/diy/ - Do It Yourself

>>1135369
>how to make rust

pour water over it, mix it up, leave it until water dries, done

>>1135370
>pour water over it, mix it up, leave it until water dries, done

I have to make sure it is completely rusted. I'm not sure this method will produce that effect.

>>1135369
try burning it. In an oven at high temp (dont melt it though and keep the oxygen flow right). Do you by any chance need it to make termite?

>>1135371
if you want to make sure, leave it in water until it looks completely rusted, then leave it 200% of the timespan, it will be 200% rusted

>>1135376
>Do you by any chance need it to make termite?
Yep. A couple of us at work have a big bag of aluminum powder and screw around during our free time with pyro shit. Working maintenance in a steel mill is great.

>>1135377
>it will be 200% rusted

Blow dust through a small opening into a blowtorch that got almost too much air for its fuel. Should all oxidise.
Catching it all will be the problem, maybe an electomagnet near or do it above a pool of water and then filter it

>>1135378

You do realize that you'll be spending time, effort, and a little bit of money converting a $15-20/lb material into an easily bought $3/lb one, right? I mean, if it's just for an experiment that's cool. On a medium to large scale, this is not a cost effective way of dicking around.

Acid.

>>1135369
what do you need termite for

>>1135406
>You do realize that you'll be spending time, effort, and a little bit of money
I do, but it's company time that I'd be sitting there looking at my phone or 80s porn mags. So, yeah, it's kind of just experimenting.

>>1135435
>what do you need termite for
Just to play around with. Saw a crew of guys at work welding a crane rail with it and thought it was interesting.

>>1135435
getting rid of spare wood

>>1135438
Hm. You still need to heat it to about 400ºF (I'm presuming in oxidation) after electrolysis to fully dehydrate it into Fe2O3 according to the wikipedia.

>Iron(III) oxide is a product of the oxidation of iron. It can be prepared in the laboratory by electrolyzing a solution of sodium bicarbonate, an inert electrolyte, with an iron anode:

>4 Fe + 3 O2 + 2 H2O → 4 FeO(OH)
The resulting hydrated iron(III) oxide, written here as Fe(O)OH, dehydrates around 200 °C.[12][13]

>2 FeO(OH) → Fe2O3 + H2O

This'll best be done in an electric furnace or kiln. The company gonna be cool with you guys running up the electric or gas bill too?

Or does it not matter if you use hydrated Iron oxide in thermite?

>>1135454
>The company gonna be cool with you guys running up the electric or gas bill too?

I'd be suprised if their gas bill is less than a half million dollars a month. Running two 110 ton electric arc furnaces the electric bill isn't even worth talking about. I doubt they'd notice.

>>1135456
Have fun melting shit!

>>1135369
bleach. get it wet with bleach. it will be rust in a matter of hours.

>>1135369
Dont be silly. This will make a mess. Iron oxide is sold as a concrete colourant. Go to your nearest hardware store and look for the brown/orange concrete colouring.

>>1135371

>>1135409
15% hydrofluric i think.

Available at any oil fieild shop by the gallon.

Dump powder in, mix well, sift with a plastic cullander

Rinse well.

And not ina fucking sink.

Shit eats steel pretty quick but the plastic is fine.

If u rins it off it should rust over night. If not then leave it in acit a little longer.

>>1135439
>welding with thermite.

Well, time to dive down a youtube rabbit hole.

>>1135439
https://youtu.be/5uxsFglz2ig

https://youtu.be/9LwbySdCTgQ
1st world. 2 guys and some gear.

3rd world. 12 faggots wearing sandles an some mud...


Smh

>>1135654
Holy shit I literally just finished watching this exact two videos

Are you me?

>>1135651
>15% hydrofluric
Fuck I never even thought of that. We have about 10000 gallons on site here

>>1135369
Which kind fignuts? Do you want a pile of rust or do you want a pile of magnetite?

>>1135449
kek

>>1135409
Acid won't turn it into oxide
You would then had to neutralise it with base and rinse several times
>>1135651
>>1135756
WTF are using that much hydroFLUORIC for?
Shit is REALLY dangerous and toxic
Are you sure it's not hydrochloric?

Iron oxide is also used as paint pigment so you could look into that

Soak it in hydrogen peroxide to rust it without dealing with any particularly dangerous chemicals.

How much Thermite are you making OP

Only thing you need