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VWR International

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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:   Removable stabilizing ring centers the octagon stirring bar (included with ring) in container. Creates a deep vortex without splashing or chattering. Resists spinout. PTFE* resin-coated. 57.2mm ring OD. 50.8Lx7.9Dmm.
Catalog Number: 58949-022
Supplier: VWR International



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Description:   Disposable magnetic stir bar eliminates potential for cross-contamination. Octagonal shape with a molded pivot ring provides increased surface area and turbulence. PTFE* resin-coated. 12.7Lx3.1dia. mm.
Catalog Number: 58947-140
Supplier: VWR International


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Description:   Mixes speedily and efficiently. The plus-sign shape creates a deep vortex and provides stable, quiet operation. PTFE* resin-coated. Assortment of five, one each of these sizes: 9.5Lx9.5Dmm, 19.1Lx19.1Dmm, 25.4Lx25.4Dmm, 32Lx32Dmm and 38Lx38Dmm.
Catalog Number: 58947-830
Supplier: VWR International



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Certificate Certificates    
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Description:   Multifaceted, interrupted profile that adds turbulence and improves stirring. Strong Alnico* magnets are encapsulated in autoclavable and inert PTFE can be used in temperatures up to 225degreesC (437degreesF).
Catalog Number: 74950-300
Supplier: VWR International



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Certificate Certificates    
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Description:   Multifaceted, interrupted profile that adds turbulence and improves stirring. Strong Alnico* magnets are encapsulated in autoclavable and inert PTFE can be used in temperatures up to 225degreesC (437degreesF).
Catalog Number: 74950-284
Supplier: VWR International



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Certificate Certificates    
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Description:   Multifaceted, interrupted profile that adds turbulence and improves stirring. Strong Alnico* magnets are encapsulated in autoclavable and inert PTFE can be used in temperatures up to 225degreesC (437degreesF).
Catalog Number: 74950-280
Supplier: VWR International



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Certificate Certificates    
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Description:   Multifaceted, interrupted profile that adds turbulence and improves stirring. Strong Alnico* magnets are encapsulated in autoclavable and inert PTFE can be used in temperatures up to 225degreesC (437degreesF).
Catalog Number: 74950-296
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:   PTFE* resin-coated, round stir bars have removable pivot ring. 76.2Lx12.7Dmm.
Catalog Number: 58949-152
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:   Removable stabilizing ring centers the octagon stirring bar (included with ring) in container. Creates a deep vortex without splashing or chattering. Resists spinout. PTFE* resin-coated. 31.8mm ring OD. 25.4Lx7.9Dmm.
Catalog Number: 58949-018
Supplier: VWR International



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Description:   PTFE* resin-coated, polygon shaped. 38.1Lx9.5Dmm.
Catalog Number: 58948-988
Supplier: VWR International



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Certificate Certificates    
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Description:   Color-coded PTFE* resin identifies the Spinbar magnetic stirring bars (with pivot ring). Blue. 50.8Lx7.9Dmm.
Catalog Number: 58949-048
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* resin-coated, octagon-shaped stirring bars with molded-on pivot ring. 34.9x9.5Dmm.
Catalog Number: 58947-138
Supplier: VWR International



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