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Making ferrofluid (Patreon)

Published:
2019-07-01 21:19:37
Edited:
2020-09-04 20:11:04
Imported:
2021-06

Content

Hey guys, I've been working really hard on this video for a while now. It's still not perfect and there's a lot more work to do, but at least it works!

Also this is my longest video ever. I hope it isn't TOO long though!

Giveaway link:  https://gleam.io/UpmYi/ferrofluid-giveaway 

Files

Making ferrofluid

Giveaway link: https://gleam.io/UpmYi/ferrofluid-giveaway

Comments

Anonymous

Awesome work! Do you think the oleic acid coating would work for zinc oxide particles?

Silviu T

Very well done, and the result is great. Instead of a stir rod, would it work with a sonicator? It could possibly simplify the procedure, and get more consistent results (particle size etc).

Silviu T

...and no, it's not too long. I prefer the longer videos, even if they're less frequent.

Silviu T

I keep thinking of many ways to experiment with the process. What about other liquids instead of kerosene? Something non-volatile perhaps. Esters come to mind, dibutyl phtalate maybe? Or even biodiesel-type esters. What about other acids? Oleic acid is unsaturated, it will oxidize when exposed to air. Saturated acids? Perhaps short chain ones (caprylic)? As for preventing oxidation during magnetite production, it could be done under argon.

parcel_ch

Nice! Congrats. Really exciting

Ethan

This is absolutely amazing. I love this content and I hope you make more like it. Have you considered selling it? I would pay good money for one of those large bottles.

Anonymous

There will be a cleanup video for this one? Discarding the crappy fluids, and cleaning all the mess produced?

Gabriel J.

Excellent work! It's wonderful to finally have a proper synthesis for something as popular as ferrofluid!

Anonymous

What would happen if you had a magnet on a drill parallel to the fluid and spun it?

Max Goldstein

When you dissolve the steel wool to make Fe2+ it seems that there's a time-lapse. If that's correct, can you do like you do with the ammonia and add "16x" or whatever the factor is? And if not, "real-time" or "1x" might be handy too, perhaps.

Anonymous

Loved the video! I really do enjoy longer videos since you still fill the whole video with interesting and useful info. Kuddos to you for putting in the research to actually figure out how to make it properly too.

Anonymous

Very cool to see you get this to work.

Kevin Martin

Much of the crap left after dissolving the steel wool could be carbon or iron carbide. Also perhaps surface oils from making the wool.

Kevin Martin

Do you have any idea of the range of particle sizes?

Nik

This was so satisfying! Finally the conclusion I was waiting on :D I also think that idea of making art with it is super interesting. I wonder if tiny/sharp magnets could also be used almost like markers?

Anonymous

I have to ask... How did you get the ferrofluid off of the magnets you poured it onto? Or, did you not bother trying to recover it?

Anonymous

Why didn´t you use an inert atmosphere such as Argon or Nitrogen? Anyway the results are impressive! Thanks for the "long" video!

Anonymous

You my best master, have accomplished something great! This may be what you become an internet celebrity for ...

Anonymous

I want some sort of container I can put on my bedside table that has the ferrofluid in water demonstration. it seems like it would be extremly fun to play with

Anonymous
>>24411422

omg I should have waited till you announced the giveaway. I am totally entering this contest. thank you for making this possible man

Anonymous

This is awesome! Given the apparent lack of proper documentation for this process, have you thought about trying to publish your results in a paper or something?

Anonymous

I like the length! If, some day in the distant future, you were to make and sell those little bottles I'd absolutely buy one

Anonymous

Have you tried putting it on a hotplate and turning on the stirring?

Anonymous

Great video! I made nanoscale zero-valent iron (nZVI) particles a few years ago in grad school for an experiment, and now I'm in nostalgia mode and tempted to see if I can dig up the procedure I used. I made mine in an anaerobic glove box that I begged a microbiology group for access to. Then I begged some electron microscope time from another group and got to take some sweet SEM pictures to validate the "nano" size of my particles! The proof-of-concept experiment (nZVI reduction of something... perchlorate maybe) ended up working but my advisor thought it was a dead end/not sexy, so it languished with my other pet projects and I didn't end up doing enough follow up work to get a paper out of it.

Anonymous

Something you can to to help prevent oxygen contamination is to add an argon blanket on top of your reaction. It is heavy enough that if you feed in a few CFH on your container the blanket would be maintained.

Anapan

Can you recreate some of these visuals? https://vimeo.com/28304264

Anonymous

I so badly want to do/see someone do some calligraphy or high end ink drawing with your ferrofluid. The fact that you showed us how the commercially available stuff did compared makes it worse. I can't even hope to buy some that would compare. Knowing I won't be able to experience this myself as an artist making me a little sad. I think a print with a costume Halbach array magnet would be amazing.

Anonymous

Did you try to add the soap before the addition of the ammonia ? The idea behind this is that the magnetite particles are coated as soon as they form, resulting in smaller particles.

Anonymous

Utterly awesome video, in the event I don’t win the giveaway I’m certain I would purchase one of those sweet vials