HOW TO - Ferrofluid synthesis

Img413 627
Ken writes - "Saw your post on the blog about making ferrofluid. If you want to use the stuff with kids, here's a safer (cleaner too, no oil) version as well as some background information." - Link. The videos are great.

Previous:
Make your own Ferrofluid - Link.



Related:

Recent Entries

Comments

Oldest comments listed first.

Posted by: alfaskop on April 15, 2006 at 2:19 AM

i dont know if it's because im in sweden, but i cant go to the linked page.


Posted by: teacherj on April 16, 2006 at 11:01 AM

Hey...25% tetramethylammonium hydroxide is only 183 dollars per 100 ml from Fisher Scientific.

If you're feeling inclined, you can get 25 grams for 40 bucks and then make up the solution yourself (same source.)

As for safer- tetramethylammonium hydroxide is classified as an "extreme danger" to health by the NFPA. Granted, you're not using much, but I'm not sure I'd want my kids (if I had them) near it.


Posted by: teacherj on April 16, 2006 at 11:03 AM

Hey...25% tetramethylammonium hydroxide is only 183 dollars per 100 ml from Fisher Scientific.

If you're feeling inclined, you can get 25 grams for 40 bucks and then make up the solution yourself (same source.)

As for safer- tetramethylammonium hydroxide is classified as an "extreme danger" to health by the NFPA. Granted, you're not using much, but I'm not sure I'd want my kids (if I had them) near it.


Leave a comment


Subscribe to MAKE!Subscribe to MAKE Magazine!

Subscribe today, save 42% and get web access to MAKE free. MAKE Digital Edition is available only to subscribers.

$34.95 / 1 year
(4 Quarterly Issues)

Subscribe now

How-to videos for Makers and Crafers!


Void your warranty, violate a user agreement, fry a circuit, blow a fuse, poke an eye out. Make: The risk-takers, the doers, the makers of things... Welcome to Make: Online!


CRAFT Maker Shed Maker Faire MAKE television
MAKE: en EspaƱol MAKE: Japan



Check out all of the episodes of Make: television



Connect with MAKE

Be a MAKE fan on Facebook MAKE on Facebook
Visit our Facebook page and become a fan of MAKE!
MAKE on Twitter MAKE on Twitter
Follow our MAKE tweets!
MAKE Flickr Pool MAKE on Flickr
Join our MAKE Flickr Pool!
    make_tips on Twitter

    MAKE's RSS feed is here.
    Add MAKE to iGoogle - GoogleGoogle.
    How to add MAKE to your RSS reader - Real simple.
    Add MAKE on FriendFeed


    Advertise here with FM.

    Why advertise on MAKE?
    Read what folks are saying about us!

    Click here to advertise on MAKE!

    MAKE wins Treehugger Best of Green Award

    MAKE wins Brit Insurance Design Award

    Subscribe to MAKE Magazine!

    Make: Online authors!

    Gareth Branwyn, Chris Connors (guest author), Collin Cunningham, Marc de Vinck, Peter Horvath (intern), Kip Kay, Goli Mohammadi, John Park, Sean Ragan, Becky Stern, Phillip Torrone

    Suggest a Site!

    Current Podcast

    itunesdl.gif How-To Tuesday: Arduino 101 & the PING))) ultrasonic sensor The PING))) ultrasonic sensor is a really easy way to measure distance with a micro-controller. All you have to do is hook up 3 wires and upload some code. These sensors are great for robots, alarm systems, or any... More...

    Get the Make: Online sent via email
    Enter your email to receive Make: Online each day:






    Subscribe to MAKE Magazine!

    Recent Posts from the Craft: Blog