polygon shaped magnetic stirring bars, without pivot ring

Description :

Polygon-Shaped Magnetic Stirring Bars (Without Pivot Ring) Polygon-shaped magnetic stirring bars are a type of laboratory stirring tool designed to enhance mixing efficiency. Unlike the more common cylindrical or oval bars, these have multiple flat sides, which create additional turbulence and improve the mixing process. Here’s a detailed look at their features, applications, and benefits: Design and Shape Polygonal Cross-Section: These stirring bars have multiple flat sides, which can vary (e.g., hexagonal, octagonal). This design increases the surface area in contact with the liquid, promoting more efficient mixing. No Pivot Ring: These bars do not have a pivot ring, which is typically used to reduce friction. The absence of a pivot ring means they lie flat on the bottom of the vessel, which can be beneficial in certain mixing applications. Applications Chemical Reactions: These stirring bars are commonly used in chemical synthesis and reactions where efficient and thorough mixing of reactants is critical. Homogenization: Ideal for homogenizing suspensions, emulsions, and dispersions due to their enhanced mixing capabilities. Biological and Medical Research: Used in mixing biological samples, such as cell cultures or biological fluids, where consistent and gentle mixing is necessary. Industrial Processes: Suitable for various industrial applications, including pharmaceuticals, food and beverage production, and cosmetic manufacturing. Benefits Enhanced Mixing Efficiency: The polygonal shape creates more turbulence within the liquid compared to cylindrical stirring bars, leading to improved mixing, especially in viscous solutions. Chemical Resistance: The PTFE coating provides excellent resistance to a wide range of chemicals, making these bars suitable for use in harsh chemical environments. Durability: The combination of a strong magnetic core and durable PTFE coating ensures long-lasting performance, even under continuous use. No Pivot Ring: Without a pivot ring, these bars can provide better contact with the vessel’s bottom, reducing the risk of slipping and ensuring more stable mixing. Tips for Use Magnetic Stirrer Compatibility: Ensure the magnetic stirrer is compatible with the size and shape of the polygonal stirring bar to achieve optimal performance. Appropriate Vessel: Use in vessels that match the size of the stirring bar. These bars are particularly effective in flat-bottomed vessels due to their shape. Cleaning and Maintenance: Clean the stirring bars regularly to remove any residues and maintain their chemical resistance and performance. PTFE-coated bars can be cleaned with mild detergents and rinsed thoroughly with water. Comparison with Other Shapes Cylindrical Bars: Polygonal bars provide more turbulence and efficient mixing compared to cylindrical bars, which are more suited for simple stirring. Oval Bars: Oval bars are designed for round-bottom flasks, whereas polygonal bars are more versatile and can be used in a variety of vessel shapes. Pivot Ring Bars: Bars with pivot rings reduce friction and are good for high-speed stirring, while polygonal bars without pivot rings ensure stable contact with the vessel bottom, beneficial for low to medium-speed mixing. Polygon-shaped magnetic stirring bars without pivot rings are versatile tools in any laboratory setting, offering enhanced mixing efficiency and durability. Their design makes them suitable for a wide range of applications, from chemical synthesis to biological research, ensuring reliable and consistent results. 1 Alnico V magnets are composed primarily of aluminum (Al), nickel (Ni), and cobalt (Co), along with small amounts of other elements such as copper (Cu) and titanium (Ti). The composition typically consists of approximately 9% aluminum, 24% nickel, 13% cobalt, 3% copper, and 1% titanium, with the remainder being iron (Fe). The exact composition may vary from batch to batch. Alnico V magnets are known for their strong magnetic properties and high resistance to demagnetization. CARE INSTRUCTIONS To ensure the longevity and effectiveness of magnetic stirring bars, it's essential to handle and maintain them properly: Cleaning: Regularly clean the stirring bars after each use to prevent buildup of residue or contamination. Use a suitable cleaning agent and rinse thoroughly with distilled water. Storage: Store stirring bars away from strong magnetic fields and corrosive chemicals. Store them in a dry and clean environment to prevent damage. Handling: Handle stirring bars with care to avoid chipping or breaking. Avoid dropping or banging them against hard surfaces. Compatibility: Ensure that the stirring bars are compatible with the solvent or solution being stirred. Some chemicals can react with or damage certain types of stirring bars. Usage: Use stirring bars within their specified temperature and chemical compatibility limits. Avoid overheating or exposing them to harsh chemicals. Maintenance: Inspect stirring bars regularly for signs of damage or wear. Replace any damaged or worn bars to maintain optimal performance. Following these care guidelines can help prolong the life of your magnetic stirring bars and ensure they perform effectively in your laboratory applications. Optional but useful Chempure® Magnetic Stirring Bar Retriever, PTFE Cylindrical permanent magnet with sealed ends, designed for easy insertion or removal of bars. Chempure® Magnetic Stirring Bar Flexible Retriever, PTFE