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Magnetic Stirring Bars

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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. 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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Supplier:  VWR International
Description:   Octagon magnetic stirring bars with integral pivot ring are the most commonly used shape.
Product available on GSA Advantage®
Supplier:  VWR International
Description:   Micro (Flea) magnetic stirring bars are designed for stirring small volumes in vessels such as vials, tubes, and gradient makers.
Product available on GSA Advantage®
Supplier:  VWR International
Description:   Polygon-shaped Alnico magnet encapsulated in FDA grade Teflon® PTFE is durable and inert.
Supplier:  VWR International
Description:   These egg-shaped stirring bars, designed especially for use in round-bottom vessels, spin unrestricted by the vessel contour.
Product available on GSA Advantage®
Supplier:  VWR International
Description:   These stirbars have polygon multifaceted surfaces that add turbulence relative to similar smooth size cylindrical bars.
Supplier:  VWR International
Description:   Cylindrical magnetic stirring bars offer excellent centering and smooth running characteristics.
Supplier:  VWR International
Description:   Octagon magnetic stirring bars with integral pivot ring are the most commonly used shape
Supplier:  VWR International
Description:   These stirbars have polygon multifaceted surfaces that add turbulence relative to similar smooth size cylindrical bars.
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
You must log in to order restricted items. We request that you provide the required business documentation to purchase this product for the first time.

To order chemicals, medical devices, or other restricted products please provide identification that includes your business name and shipping address via email CMD_NA@vwr.com or fax 484.881.5997 referencing your VWR account number . Acceptable forms of identification are:

  • issued document with your organization's Federal Tax ID Number
  • Government issued document with your organization's Resale Tax ID Number
  • Any other Government ID that includes the business name and address


VWR will not lift restrictions for residential shipping addresses.

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This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is currently unavailable but limited stock may be available in our extended warehouse network. Please call 1-800-932-5000 and a VWR Customer Service Representative will help you.
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