Description
Magnetic stirring bar 70x9 mm is a cylindrical laboratory stir bar with a magnetic core fully encapsulated in polytetrafluoroethylene (PTFE). It measures 70 mm in length and 9 mm in diameter and is supplied in the round rod form without a centre ring. Smooth PTFE surfaces promote low-friction movement on vessel bottoms and support stable vortex formation on standard magnetic stirrers. The chemically resistant PTFE jacket shields the magnet from aggressive media and simplifies cleaning between runs. These bars are well suited to routine mixing, dissolution and sample preparation in beakers, flasks and similar vessels across analytical and research workflows. Packed as 10 pieces per unit, they offer practical stock for busy laboratories. The cylindrical geometry suits a broad range of vessel sizes while the inert coating maintains performance with many aqueous and organic solvents. Manufactured by Marienfeld, this PTFE-coated stirring bar combines durable construction with everyday laboratory convenience for consistent, reproducible stirring results.
This article is part of Magnetic stirring bars, in Stirring, shaking & mixing.
Key features
- Pack size: 10 pc(s)
- Length: 70 mm
- Diameter: 9 mm
- Shape: cylindrical (round rod)
- Centre ring: no
- EAN: 4250317314925
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Questions about Magnetic stirring bars 70x9 mm,
What is this article?
Magnetic stirring bars 70x9 mm, is the article on this page. Luminix Health distributes Marienfeld 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.
How does ordering and shipping work?
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.