cross head magnetic stirring bar suitable for round bottom flasks, test tubes & cylinders

Description :

Cross-Head Magnetic Stirring Bars Cross-head magnetic stirring bars are specialized laboratory tools designed to provide efficient and thorough mixing in various types of vessels, including round bottom flasks, test tubes, and cylinders. Their unique design and features make them versatile and highly effective in different mixing applications. Here’s an in-depth look at their features, applications, and benefits: Design and Shape Cross-Head Shape: The cross-head stirring bar has a unique design that resembles a cross or a plus sign (+). This shape increases the surface area in contact with the liquid, enhancing turbulence and mixing efficiency. Central Magnetic Core: The magnetic core is located at the center of the cross, ensuring stable and effective rotation when placed in a magnetic stirrer. Applications Round Bottom Flasks: The cross-head shape conforms well to the curved interior of round bottom flasks, ensuring thorough mixing of solutions and reactants. Test Tubes: Due to their compact and versatile design, cross-head stirring bars can be used in test tubes, providing efficient mixing in small volumes. Cylinders: The shape and design of these bars make them suitable for use in cylindrical vessels, ensuring uniform mixing throughout the liquid column. Chemical Reactions: Ideal for chemical synthesis and reactions where efficient mixing is critical to achieving uniform reaction conditions. Biological Research: Used for mixing biological samples, such as cell cultures or biological fluids, where consistent and gentle mixing is required. Materials Science: Suitable for mixing suspensions, emulsions, and other materials in various types of vessels. Benefits Versatility: Cross-head stirring bars are suitable for use in a wide range of vessels, including round bottom flasks, test tubes, and cylinders, making them highly versatile. Efficient Mixing: The cross-head design creates strong turbulence, ensuring efficient and thorough mixing even 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. Stable Rotation: The central magnetic core ensures stable and effective rotation, preventing the bar from slipping or moving erratically within the vessel. Tips for Use Magnetic Stirrer Compatibility: Ensure the magnetic stirrer used is compatible with the size and shape of the cross-head stirring bar to achieve optimal performance. Appropriate Vessel: Use cross-head stirring bars in appropriately sized vessels to ensure effective mixing. The versatility of these bars makes them suitable for a range of vessel shapes and sizes. Cleaning and Maintenance: Regularly clean the stirring bars to remove any residues and maintain their chemical resistance and performance. PTFE-coated bars can usually be cleaned with mild detergents and rinsed thoroughly with water. Comparison with Other Shapes Cylindrical Bars: Cylindrical bars are more suited for simple, high-speed stirring in flat-bottomed vessels, while cross-head bars provide better performance in a variety of vessel shapes due to their unique design. Oval Bars: Oval bars conform well to round bottom flasks but may not be as versatile as cross-head bars for use in test tubes and cylinders. Dumbbell Bars: Dumbbell bars generate strong turbulence at low speeds but may not provide the same level of versatility and efficient mixing in different vessel shapes as cross-head bars. Summary Cross-head magnetic stirring bars are versatile and efficient tools for laboratories that use a variety of vessels, including round bottom flasks, test tubes, and cylinders. Their unique cross-head design ensures efficient and thorough mixing, making them suitable for a wide range of applications in chemical synthesis, biological research, and materials science. The combination of a strong magnetic core and durable PTFE coating ensures long-lasting performance and excellent chemical resistance, making these stirring bars a valuable addition to any laboratory. 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