Odd reaction creates a stir in the lab
(Rice University) Rice University chemists show how PTFE - aka Teflon - in standard lab stir bars affects a chemical reaction used to reduce nanotubes, skewing the results.
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Magnetic stir bars carry 'memory' from previous flasks and tubes
(AKSON Russian Science Communication Association) Magnetic stir bars are regarded as reusable consumables, and in many labs they last for months. This study shows that in a regular catalysis lab almost all magnetic stir bars become permanently contam...