What size stir bar?

[Monkeybrew]

Hi

I'm putting together a stir plate, and wondered what size stir bar I need for a 2L conical flask?

Cheers

MB

[Pcpogo]

When I built mine I tried all shapes and sizes. I've finally found that a triangular bar works the best as it doesn't fly off at all. All the others did no matter what I did. I've got a 2ltr flask. The stir bar is about one inch long and works fine.

Hope that's of some help

[jat147]

I didn't try a triangle bar, but I did find that the longer ones hold the magnet better than short ones. I didn't find any disadvantage to a longer bar.

[roscoe]

any links to these triangle or long bars ?

[pads72]

Also known as 'fleas' - not sure why!

Here's a link to where i got mine from -
http://www.camlab.co.uk/stirring-bars-c2768.aspx

+1 vote for triangular bar