Description
Magnetic stirring bar octagon, PTFE 8 × 25 mm is a precision laboratory stir bar engineered for efficient mixing in beakers, flasks and reaction vessels. The octagonal rod profile improves turbulence and reduces spinning out at higher speeds compared with smooth cylindrical bars. Manufactured from chemically inert polytetrafluoroethylene (PTFE), the bar resists aggressive solvents, acids and bases across a wide temperature range. Diameter is 8 mm and length is 25 mm, making it suitable for small- to medium-volume applications. The encapsulated magnetic core ensures reliable coupling with standard magnetic stirrers. Supplied in packs of ten pieces, these octagon stir bars from manufacturer Vitlab are everyday consumables for analytical chemistry, sample preparation and general laboratory workflows. The PTFE surface is easy to clean and does not contaminate sensitive solutions. Ideal for routine use where chemical resistance and stable stirring performance are required.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Material: Polytetrafluoroethylene (PTFE)
- Diameter: 8 mm
- Length: 25 mm
- Shape: Octagonal rod
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Questions about Magnetic stirring-bar, PTFE, OCTAGON, 8 x 25 mm, with pivot ring
What is this article?
Magnetic stirring-bar, PTFE, OCTAGON, 8 x 25 mm, with pivot ring is the article on this page. Luminix Health distributes Vitlab 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.