Magnetic Stir Bar Micro-Flea Size PTFE Coated 2mm - 13mm

£1.09 to £1.59

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Code: Please choose option from drop down above

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Variation ID	Product Code	Pack Size	List Price
20304	ST540-14	2mm x 2mm x 1 Pack	£1.16
20305	ST540-19	3mm x 3mm x 1 Pack	£1.16
20306	ST540-25	5mm x 2mm x 1 Pack	£1.09
20307	ST540-30	7mm x 2mm x 2 Pack	£1.19
20308	ST540-35	8mm x 1.5mm x 2 Pack	£1.59
20309	ST540-40	10mm x 3mm x 2 Pack	£1.16
20310	ST540-45	13mm x 3mm x 2 Pack	£1.50

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Magnetic stir bars are coated magnets used to stir liquids in a sealed container. They can stir fluids without requiring an opening in the container. They are a popular way of stirring liquids in modestly sized containers. Magnetic stirrers are used in chemistry and biology research, especially in medicine.

The coating protects both the magnet itself and also the mixture it is stirring whilst also being chemically inert and easy to clean. The low friction shape and high strength of the permanent magnet helps create a powerful mixing vortex even with more viscous solutions.

Mixing liquids in an enclosed container to remove risk of contamination. Ideal for relatively smaller sized experiments in liquids of around 4 litres or less.

Commonly used in the following fields: