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Bel-Art Scienceware F371630000 Teflon (PTFE), Color-Coded, Octagonal Spinpak Magnetic Stir Bar Assortment, with Pivot Ring

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ASIN B002VBW73O

Specifications for this item
Number of Items
6
Material Type
PTFE (Polytetrafluoroethylene)
Part Number
371630000
Outside Diameter
1  inches
Brand Name
Bel-Art Products
Size Name
1" x 5/16"
UNSPSC Code
41121802
Overall Length
0.313  inches

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Key Features

  • Octagonal shape creates more turbulence than round, cylindrical stir bars
  • Teflon (PTFE) casing is chemically inert, can be used with corrosive chemicals, and helps reduce friction and wear while spinning
  • Built-in pivot ring on the stir bars reduces vibration and wear during stirring
  • Pack includes red, blue, and yellow stir bars, for differentiating stir bars among stirring applications
  • Contains six 1 x 0.3125" (25.4 x 8 mm) stir bars

Package Details

Shipping Weight: 0.1 pounds
Package Size: 6 x 3.3 x 0.1 inches

Product Description

The Bel-Art Scienceware F371630000 Spinpak stir bar assortment contains six color-coded octagonal stir bars that have a built-in pivot ring, a Teflon (PTFE) casing, and an internal magnet made from alnico V (an alloy of aluminum, nickel, iron, and cobalt) for a range of laboratory stirring applications. The octagonal shape creates more turbulence and a stronger vortex than a round, cylindrical shape or a polygonal shape. The bar's internal magnet is made from alnico V (an alloy of aluminum, nickel, iron, and cobalt). The magnet sits inside a Teflon (polytetrafluoroethylene, or PTFE) casing, which is chemically inert, can be used with corrosive chemicals, and helps reduce friction and wear while spinning. A built-in pivot ring on the stir bars minimizes contact between the bar and the container to help reduce vibration and wear during stirring. The set contains two red bars, two blue bars, and two yellow bars, for differentiating stir bars among stirring applications. The bars measure 1" x 0.3125" (L x OD, where L is the length, the horizontal distance from left to right, and OD is the outside diameter, or circumference). The casing material is FDA approved for use in food, drug, and cosmetic 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.

What's in the Box>
  • (2) red octagonal stir bars with pivot ring, 1" x 0.3125"
  • (2) blue octagonal stir bars with pivot ring, 1" x 0.3125"
  • (2) yellow octagonal stir bars with pivot ring, 1" x 0.325"

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