[hackspacebristol] Ferrofluid

Richard Sewell richard at jarkman.co.uk
Mon May 23 08:10:41 UTC 2011

Jon - that looks both cheap and easy. If it works we should be able to 
make buckets of the stuff.

Note that it involves boiling off ammonia at one point, which I think 
would render the average kitchen uninhabitable. You don't happen to have 
access to a fume cupboard, do you ?


On 23/05/2011 08:22, Chocolate Jon wrote:
> To Merlin and anyone else that's interested,
> Was looking around and found that you can get 300g of Ferrofluid for £80
> which is cheaper than the $1 per 1 ml that I remember being told.
> Source:
> http://cgi.ebay.co.uk/300g-Ferrofluid-magnetic-liquid-neodymium-magnets-/350
> 437073292?pt=UK_BOI_Medical_Lab_Equipment_Lab_Supplies_ET&hash=item5197ad618
> c
> But that isn't the Hackspace way so here is a way you can make your own
> Ferrofluid (well, liquid magnet since ferrofluid might be a trademark or
> something):
> http://chemistry.about.com/od/demonstrationsexperiments/ss/liquidmagnet.htm
> It may not be as good or much different in price but I thought that you
> might be interested.
> Hope that helps,
> Jon
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