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Magnetic Stirring Bars

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Magnetic Stirring Bars

Magnetic stirring bars provide effective stirring of samples via magnetic manipulation. Many models feature an octagonal shape with a central integrated pivot ring for optimal turbulence while stirring thanks to a greater surface area. The heavy-duty magnetic strips is one of the frequently used tools, strong enough to hold the solution. Commonly coated in Teflon to provide chemical inertness, occasionally glass will be the coating for use with most liquid alkali metals and alkali metal solutions in ammonia. Both of these coatings are inert and will not contaminate or react with the reaction solution.


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Description:   24 PTFE* resin-coated, magnetic stir bars in a compartmented Spinbox*. 8 different sizes; each size has 1 stir bar in red, yellow, and blue. Sizes (in mm): 12.7x3.2, 22.2x7.9, 25.4x7.9, 50.8x7.9, 15.9x7.9, 12.7x7.9, 38.1x7.9 and 76.2x12.7.
Catalog Number: 58948-074
Supplier: VWR International



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Description:   Perform well with problem liquids, viscous mixtures, metal particles in fluids and round (convex) bottom vessels. Each is designed as 8mm diameter bar with solid, color-coded, 20mm diameter, PTFE* resin end discs. Reusable container. Blue. 52mm long.
Catalog Number: 58947-984
Supplier: VWR International



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Description:   Rare Earth, Molded in pure, FDA approved, PTFE or polypropylene. Autoclavable. 10mm diameter x 250mm length
Catalog Number: 89026-254
Supplier: VWR International



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Description:   PTFE, Rare Earth, Elliptical, 70mm Length x 28mm Diameter
Catalog Number: 89030-558
Supplier: VWR International



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Description:   PTFE* resin-coated, round stir bars have removable pivot ring. 44.4Lx9.5Dmm.
Catalog Number: 58949-120
Supplier: VWR International



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Description:   Stirs powders suspended in liquids, PTFE*, autoclavable at 1212 C (250F).
Catalog Number: 89030-914
Supplier: VWR International



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Description:   Polygon. 10x6mm. Contains a powerful Alnico V magnet to achieve strong vortexes with less “spin-out”. They are encapsulated in Teflon* PTFE for remarkable chemical resistance.
Catalog Number: 47751-480
Supplier: Bel-Art Products, a Part of SP



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Description:   Polygon. 25x8mm. Contains a powerful Alnico V magnet to achieve strong vortexes with less “spin-out”. They are encapsulated in Teflon* PTFE for remarkable chemical resistance.
Catalog Number: 47751-488
Supplier: Bel-Art Products, a Part of SP



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Description:   Heavy duty, PTFE* resin-coated, magnetic stirring bars for use in stirring large volumes of fluids on large magnetic stirring machines. Neck size of fluid containing vessel must be 32mm or larger to accept stir bars. 108Lx27Dmm.
Catalog Number: 58948-972
Supplier: Bel-Art Products, a Part of SP



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Certificate Certificates    
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Description:   10x3mm. Blue.
Catalog Number: 47751-516
Supplier: Bel-Art Products, a Part of SP



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Description:   A 9.5mm diameter pick-up rod with powerful Alnico magnet sealed in one end and handy hang-up grip on the other. 457mm long.
Catalog Number: 58949-287
Supplier: Bel-Art Products, a Part of SP



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Description:   Samarium cobalt (rare earth) magnet encapsulated in Teflon PTFE. Rare earth magnets provide up to 3x the coupling strength of normal alnico magnets, which minimize decoupling while stirring.
Catalog Number: 89171-440
Supplier: Bel-Art Products, a Part of SP



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Description:   PTFE-coated magnetic stirring bar. Polygonal surface for efficient stirring action. Size: 22 x 4.7mm (7/8 x 3/16in).
Catalog Number: 74950-278
Supplier: Bel-Art Products, a Part of SP



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Description:   Polygon. 60x7mm. Contains a powerful Alnico V magnet to achieve strong vortexes with less “spin-out”. They are encapsulated in Teflon* PTFE for remarkable chemical resistance.
Catalog Number: 47751-484
Supplier: Bel-Art Products, a Part of SP



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Description:   80x10mm.
Catalog Number: 47750-154
Supplier: Bel-Art Products, a Part of SP



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Description:   Made from a high-energetic, Samarium-Cobalt magnet encapsulated in Teflon* PTFE. Octagonal shape. Length: 50mm. Diameter: 21mm. Transmits torque loads two to three times larger than those of conventional stirring bars of this length.
Catalog Number: 58947-970
Supplier: Bel-Art Products, a Part of SP



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