New way of making a ferrofluid. Costs less than 3$!!!

Step 3 Melt binder and separate Fe2O3

Melting:
Find large enough bowl. Put all tapes in and fill bowl with acetone. Wait few hours. You should close bowl with something to keep acetone from vaporising.

Comments

[Zujus]

Na jei neuzdengsi bliudo tai isgaruos acetuonas :D tai taip ir pagerina efekta kad jis ten lieka :D 

[piestas]

A kodel uzdengt reik bliuda su acetonu? kaip nuo to gali but efektas geresnis ?.

[flying texan]

I foregot.....then shake well!

[flying texan]

I used a glass bottle to put tapes acetone and a wire brush as an aggitant to better scrub off ferric oxide, and then I used hard drive magnets to pull the ferric oxide from the tapes as well.

[whiteoakart]

Please do this in a well-ventilated area.

[Carigo]

Also, preferably do not use a plastic bowl, as you run the risk of dissolving the bowl as well. Glass/ceramic is perfect.

[xenobiologista]

I think that's the point of the magazine over the tub, to stop the acetone from evaporating too fast and having a lot of fumes build up in your work space. Container w/airtight lid would be better probably.

[girrrrrrr2]

Find a enough size blow... dont you mean bowl...

[Zujus]

lol. sorry ;)