Description
Magnetic stirring bars with PTFE coating, oval, 25 x 12 mm are laboratory stir bars intended for reliable mixing on magnetic stirrers. The oval profile and PTFE coating support smooth rotation and broad chemical resistance during everyday wet-chemistry work. At 25 x 12 mm they are particularly suitable for round-bottom flasks, where the curved geometry helps maintain stable contact with the vessel wall and promotes effective agitation. A pack of 30 pieces from manufacturer Labbox covers multi-vessel setups in research, teaching and routine analytical laboratories. PTFE-coated bars are widely used for dissolving solids, homogenising solutions and keeping suspensions mobile without introducing metallic contact surfaces into the medium. The oval form factor is preferred over cylindrical bars when working with flasks and other curved bottoms, reducing the risk of uneven spinning. Net pack weight is 0,120 kg. These consumable stir bars fit standard magnetic hotplate stirrers and support synthesis, sample preparation and general laboratory mixing tasks where chemical inertness and consistent stirring performance are required.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 30 pc(s)
- Shape: Oval
- Coating: PTFE
- Dimensions: 25 x 12 mm
- EAN: 8434868029415
- GTIN: 08434868029415
- Technical Information Sheet:
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Questions about Magnetic stirring bar, oval, l 25 x diam. 12 mm, 30 pcs
What is this article?
Magnetic stirring bar, oval, l 25 x diam. 12 mm, 30 pcs is the article on this page. Luminix Health distributes Labbox 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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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.