SP Bel-Art Spinring Teflon Magnetic Stirring Bar; 50.8 x 8mm, 57.2mm Ring O.D., White (F37140-0020) Made in USA

Size:2" x 5/16" Size, 2-¼" Ring OD Size:2" x 5/16" Size, 2-¼" Ring OD Balancing ring positions stirring bar in the midpoint of the container. Research, industrial and healthcare professionals rely on SP Scienceware for their sample handling needs. Sold worldwide, Bel-Art and H-B Instrument brand laboratory supplies include over 5,000 items from safety wash bottles to fume hoods, thermometers, racks, desiccators, hydrometers, ice buckets, scoops and spoons. Custom calibration services, plastic molding, specialty coatings and wire manufacturing are also available. Wilmad-LabGlass brand laboratory glassware complements Bel-Art and H-B Instrument with over 7000 items including NMR and EPR consumables and specialty glassware, as well as custom fabrication for individual glassware, glass repair services and OEM glass parts. SP Scienceware is a division of Warminster, PA based SP Industries which also include SP Scientific laboratory, thermal management, and pharmaceutical production equipment and SP Ableware aids for daily living.

• Octagonal bar sits in a removable outer ring to create a vortex to the bottom of the container, center the bar in the vessel, and reduce vibration, splashing, and spin out
• Outer ring and stir bar casing are made from Teflon (PTFE), which is chemically inert, can be used with corrosive chemicals, and helps reduce friction and wear while spinning
• Internal magnet made from alnico V, an alloy of aluminum, nickel, iron, and cobalt
• Casing material is approved for use in food, drug, and cosmetic applications
• Outer ring and bar can be disassembled for cleaning