MAGNETIC STIR BAR, 50 MM This magnetic stir bar is a high-quality laboratory tool designed for efficiently mixing liquids in flat-bottomed vessels such as Erlenmeyer flasks or graduated cylinders. It features a chemically resistant coating and a strong magnetic core to ensure reliable performance during stirring operations.

Main Benefits

The PTFE or glass coating provides chemical resistance and prevents solution contamination.
The strong magnetic core ensures stable rotation and effective mixing.
The smooth surface facilitates cleaning and reduces friction during stirring.
Suitable for a wide range of laboratory applications, including high temperatures or abrasive media (depending on the coating type).

Composition

Magnetic core material: Options include Alnico, Samarium-Cobalt (SmCo), or Neodymium, depending on the specific model.
Coating material: PTFE (Teflon) or glass, providing chemical resistance and inertness.

Usage Instructions

Use by placing the magnetic stir bar inside the vessel containing the liquid to be mixed and placing the vessel on a compatible magnetic stirring plate.
Ensure the bar rotates smoothly; adjust the stirring speed as needed to achieve optimal mixing.
Choose a model with suitable coating (PTFE for general use; glass for high-temperature or abrasive conditions).

Package Size

Available in packs of 1, 4, or 5 pieces depending on the manufacturer and model.

Note

PTFE-coated models are widely used for general laboratory mixing; glass-coated versions offer zero absorption and are ideal for high-purity work or precise analysis.