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Magnetic Stirring Bar Octahedral Polytetrafluoroethylene (PTFE)

£2.20£13.50 ex VAT


AlNiCo-V magnets encased in Polytetrafluoroethylene (PTFE), these magnetic stirrer bars are autoclavable and include a pivot ring. The flat surfaces ensure an optimal mixing action, and the octahedral shape is well suited to containers with slightly curved or uneven bases. Inert. Leak-free. Colourless. Odourless. Available in 4 lengths. The required length of bar depends on the flask base diameter. Normally, the bar length should be between 30% and 60% of the flask base diameter. Speed of mixing also determines the optimum size; if a high mixing speed is required, a smaller size bar should be used to reduce the vortex depth.

Please note that magnetic stirrer bars are more suitable for low and medium viscosity solutions. For high viscosity (thick) solutions, such as gels, mechanical (overhead) stirrers can be used.


Material:  PTFE coated AlNiCo-V magnets
Lengths:  15mm, 25mm, 50mm, 100mm
Diameter:  8mm, 10mm, 10.5mm

Available in 4 sizes:
8mm x 15mm
8mm x 25mm
9mm x 50mm
10.5mm x 100mm

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