blades-stirrer magnetic stirring bars, moon shaped with long groove key hole for glass stirrer shafts

Description :

Blade-Stirrer Magnetic Stirring Bars Blade-stirrer magnetic stirring bars, often referred to as "moon-shaped" with a long groove keyhole, are specialized laboratory tools designed for efficient mixing and stirring in conjunction with glass stirrer shafts. Their unique shape and design make them highly effective for a variety of mixing applications, particularly in vessels where traditional stirring bars may not provide sufficient agitation. Here’s an in-depth look at their features, applications, and benefits: Design and Shape Moon Shape: The blade-stirrer magnetic stirring bars have a distinctive moon or crescent shape. This design enhances the turbulence and mixing efficiency within the vessel. Long Groove Keyhole: These stirring bars feature a long groove keyhole designed to fit securely with glass stirrer shafts. This keyhole ensures that the stirring bar remains in place and rotates effectively when coupled with the glass stirrer shaft. Smooth Blades: The smooth blade-like edges of these stirring bars help to create strong turbulence, improving the mixing process by cutting through the liquid and promoting uniform distribution. Applications Chemical Synthesis: Ideal for chemical synthesis where thorough mixing of reactants is crucial to achieve uniform reaction conditions. Biological Research: Used for mixing biological samples, such as cell cultures or biological fluids, where consistent and gentle mixing is necessary. Pharmaceuticals: Suitable for the preparation of pharmaceutical formulations where precise mixing is essential. Environmental Testing: Employed in environmental testing laboratories to mix samples and reagents, ensuring thorough distribution and accurate analysis. Analytical Chemistry: Used in analytical chemistry for preparing homogeneous solutions and suspensions. Benefits Enhanced Turbulence: The moon shape and smooth blades create enhanced turbulence, ensuring efficient and thorough mixing of the liquid. This design is particularly effective in cutting through viscous solutions. Secure Fit: The long groove keyhole ensures a secure fit with glass stirrer shafts, preventing the stirring bar from slipping and ensuring stable and effective mixing. Chemical Resistance: The PTFE coating provides excellent resistance to a wide range of chemicals, making these stirring bars suitable for use in harsh chemical environments. Durability: The robust magnetic core and durable PTFE coating ensure long-lasting performance, even under continuous use. Versatility: Suitable for use in a variety of vessels and applications, making them versatile tools for different laboratory settings. Tips for Use Magnetic Stirrer Compatibility: Ensure the magnetic stirrer used is compatible with the size and shape of the blade-stirrer magnetic bar to achieve optimal performance. Proper Coupling: Ensure that the long groove keyhole fits securely with the glass stirrer shaft to prevent slipping and ensure effective mixing. Appropriate Vessel: Use blade-stirrer magnetic bars in vessels that match their size and shape to ensure effective mixing. Their design is suitable for a range of vessel types. 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 blade-stirrer bars provide better performance in various vessels due to their enhanced turbulence and secure fit with glass shafts. Oval Bars: Oval bars are effective for round bottom flasks but may not create the same level of turbulence as blade-stirrer bars, which are designed to cut through the liquid. Triangular Bars: Triangular bars generate strong turbulence at low speeds and are effective for churning sediments, while blade-stirrer bars are designed for secure coupling with glass shafts and efficient mixing in various applications. Summary Blade-stirrer magnetic stirring bars are essential tools for laboratories that require efficient and thorough mixing in conjunction with glass stirrer shafts. Their unique moon-shaped design with a long groove keyhole ensures secure coupling and enhanced turbulence, making them suitable for a wide range of applications in chemical synthesis, biological research, pharmaceuticals, environmental testing, and analytical chemistry. 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