This article was co-authored by Jessie Antonellis-John and by wikiHow staff writer, Hannah Madden. Jessie Antonellis-John is a Math and Science Instructor who teaches at Southwestern Oregon Community College. With over 10 years of experience, she specializes in curriculum development. Jessie earned her PhD in Teaching & Teacher Education from the University of Arizona, her Master of Education from Western Governors University, and her BS in Astrophysics from Mount Holyoke College. She’s also co-authored several peer-reviewed journal articles in professional publications.
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Looking for a cool science experiment you can do at home? Look no further! Ferrofluid, or ferripaste, is an easy, fun-to-make magnetic oil that only needs 2 ingredients: motor oil and iron oxide powder. When you mix these 2 things together, it creates a special “fluid” that almost behaves like a solid, especially in the presence of a magnet. So what are you waiting for? To make your very own ferrofluid to play around with, read this article!
Things You Should Know
- Mix 10 grams (0.3 oz) of motor oil with 10 grams (0.3 oz) of iron oxide powder in a petri dish.
- Use a magnet to manipulate the ferrofluid to make peaks and valleys.
- Because the iron oxide is magnetic and suspended in the oil, a magnet can manipulate it.
- Store ferrofluid in an airtight container. When you’re done, dispose of the ferrofluid in the trash.
Steps
Community Q&A
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QuestionIs it dangerous? Can you die from it?Very_Helpful_Guides!!!Community AnswerFerrofluid is based on hydrocarbons and has a composition similar to motor oil, making it safe but not recommended for ingestion or inhalation. It can cause eye irritation, so protective clothing, gloves, and safety glasses are advised when handling ferrofluid. Additionally, ferrofluids are considered a major skin irritant.
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QuestionDo we need motor oil for this?JEREMY GARCIACommunity AnswerYes! If it were water, it would just separate very quickly. Water doesn't work because an oily film develops, and the water becomes unsightly.
Video
Tips
Warnings
- Iron oxide will stain clothes and surfaces. Be careful not to get it on your clothing or countertops during your experiment.[8]Thanks
- Ferrofluid is highly flammable, and while it’s not toxic, it can cause skin irritation. If ferrofluid gets on your skin, rinse well with warm water for 15 minutes.[9]Thanks
Things You’ll Need
- Petri dish
- Motor oil
- Iron oxide
- Stirring stick
- Magnet
- Airtight container
References
- ↑ https://www.youtube.com/watch?v=CWH9C__jn2w&t=287s
- ↑ https://www.youtube.com/watch?v=CWH9C__jn2w&t=271s
- ↑ https://www.youtube.com/watch?v=-ZoW7ayI9MY&t=173s
- ↑ https://www.youtube.com/watch?v=-ZoW7ayI9MY&t=216s
- ↑ https://www.businessinsider.com/how-to-make-ferrofluid-the-liquid-of-the-future-2012-1
- ↑ https://www.supermagnete.de/eng/faq/Questions-and-answers-about-ferrofluid
- ↑ https://www.supermagnete.de/eng/faq/Questions-and-answers-about-ferrofluid
- ↑ https://www.youtube.com/watch?v=-ZoW7ayI9MY&t=134s
- ↑ https://www.supermagnete.de/eng/faq/Questions-and-answers-about-ferrofluid