Brand: Thermo Scientific
Features:
- Round shape with tapered ends has a rounded pivot point to reduce friction and wear while spinning
- PTFE casing is chemically inert, can be used with corrosive chemicals, and helps reduce friction and wear while spinning
- Smooth surface provides quicker cleanup and less risk of cross-contamination than bars with pivot rings
- Internal magnet made from samarium cobalt provides stronger magnetic attraction in viscous solutions and at high speeds than a magnet made from an alloy of alnico V
- Can be sterilized with steam at temperatures up to 249.8 degrees Fahrenheit (121 degrees Celsius)
Details: The Thermo Scientific ELED Komet round stir bar with tapered ends has a white PTFE casing and an internal magnet made from samarium cobalt for a range of laboratory stirring applications. The round shape with tapered ends has a rounded pivot point to reduce friction and wear while spinning. The bar's internal magnet is made from samarium cobalt, which provides stronger magnetic attraction in viscous solutions and at high speeds than a magnet made from alnico V (an alloy of aluminum, nickel, iron, and cobalt). The magnet sits inside a polytetrafluoroethylene (PTFE) casing, which is chemically inert, can be used with corrosive chemicals, and helps reduce friction and wear while spinning. The bar's smooth surface provides quicker cleanup and less risk of cross-contamination than bars with pivot rings. The bar can be sterilized with steam at temperatures up to 249.8 degrees Fahrenheit (121 degrees Celsius). 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. Thermo Fisher Scientific manufactures analytical instruments, laboratory equipment, consumables, and software under the Thermo Scientific, Fisher Scientific, and Nalgene brands, among others. The company is headquartered in Waltham, MA.
