Description
BOLA cylindrical magnetic stirring bars, approximately 25 mm in length and 5 mm in diameter, are standard PTFE-coated stir bars intended for laboratory magnetic stirring. An Alnico 5 magnetic core is completely encapsulated in polytetrafluoroethylene (PTFE), providing universal chemical resistance for use with many aqueous and organic media. The slender round cylindrical geometry promotes even rotation on magnetic stirrers and is practical in narrower vessels or smaller working volumes during synthesis, dissolution and sample work-up. Net weight is 0,002 kg, keeping the bar lightweight and simple to position or retrieve. These stirring bars from manufacturer Bohlender offer a dependable combination of magnetic strength and inert surface chemistry for routine bench applications. The PTFE coating shields the core and preserves dimensional stability under normal laboratory conditions. Supplied as one piece, the 25 mm by 5 mm format suits flasks, tubes and beakers where a longer, thinner stir bar improves mixing efficiency without introducing metallic contamination into the process stream.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 1 pc
- Length: 25 mm
- Diameter: 5 mm
- Material: Polytetrafluoroethylene (PTFE)
- Shape: Cylindrical, round bar
- Magnetic core: Alnico 5
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Questions about BOLA Cylindrical Magnetic Stirring Bars, L 25 mm Ø 5 mm PTFE-coated
What is this article?
BOLA Cylindrical Magnetic Stirring Bars, L 25 mm Ø 5 mm PTFE-coated is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Magnetic stirring bars, inside Stirring, shaking & mixing, in Lab instruments.
A magnetic stirring bar is the magnet coated in PTFE that spins inside a vessel, driven by a stirrer underneath. Length and shape, plain, oval or cross, have to suit the flask. A bar left against a dry glass wall will grind it.
Stirring keeps a mixture uniform or helps a solid dissolve. A magnetic stirrer spins a bar inside a closed vessel. An overhead stirrer drives a shaft when the liquid is viscous or the volume is large. A vortex mixer agitates a tube. A shaker moves a whole rack or a plate. The shape of the impeller and the speed decide whether the liquid turns over or merely spins. The vessels being stirred are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stirring, shaking & mixing. The sub-category is Magnetic stirring bars. The catalogue is Lab instruments.
Shelves beside this one are Stirring shafts, propellers & impellers, Magnetic stirrers, Stirring & mixing accessories, Homogenisers & dispersers, Shakers, rockers & rotators, Overhead stirrers and Vortex mixers.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.