mekanochemical - 29-11-2020 at 17:39
Hello all
Does someone know this kind of magnetic stirrer? is the Double Spinfin Magnetic Stirring Bar, the same model from this site
https://www.taylorscientific.com/double-spinfinr-magnetic-st...
I bought because found very cheap here 
but it spins eccentrically, is it
normal?
https://youtu.be/spkBNiVUeys
thanks
[Edited on 30-11-2020 by mekanochemical]
mackolol - 30-11-2020 at 02:37
Does it withstand high speeds spinning this way?
macckone - 30-11-2020 at 02:37
It looks like it is too small for the magnet on the stir plate.
So it is getting one pole stuck to a pole on the stir plate and getting dragged around.
These are designed for use in a round bottom flask where it will be pulled to the bottom of the flask.
For a flat bottom, you really need something sized to the dimensions of the stir plate magnet.
mekanochemical - 30-11-2020 at 09:02
I managed to make it spin in the center, but it's really unstable on a flat bottom. It is 25mm in diameter.
Thanks