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Package Size: 2.6 x 2.5 x 0.7 inches
The Bel-Art Scienceware F377860000 PE magnetic stir bar arrester with internal radial magnet sits beneath a container that has a magnetic stir bar to trap the stir bar against the bottom of the container. It prevents the stir bar from being poured out when emptying the container in laboratory stirring applications. The arrester is made from polyethylene (PE), which provides resistance to chemicals and wear. It measures 0.375" (9.5 mm) thick by 2" (51 mm) diameter. It is for use in laboratory stirring applications.
Magnetic stir bars (sometimes called stirring bars, spin bars, or fleas) are used to stir a liquid or solution in biological, chemical, medical, and research laboratory applications. The stir bar is placed inside a container of liquid or solution that is seated on a magnetic stirrer (also called a magnetic mixer), which is a laboratory device that creates a rotating magnetic field using a rotating magnet or multiple stationary electromagnets. The rotating magnetic field causes the bar to spin, which stirs the liquid or solution. Stirring bars are offered in a variety of sizes and shapes, and they are encased in materials such as glass or plastic to help prevent contamination of the liquid or solution, to reduce friction, and to provide resistance to chemicals, abrasion, and heat. The bar may have a pivot ring or pivot point to minimize contact with the container, reduce friction, and improve its spinning. The size and shape of the container and the volume and viscosity of the liquid or solution to be stirred determine which stir bar shape, size, and casing will suit a particular application.
Bel-Art Products manufactures scientific products, including labware, testing equipment, and safety supplies, under the Bel-Art and Scienceware brands. The company, founded in 1946, is headquartered in Wayne, NJ.
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