Magnetic Stirrer Bar (25mm, PTFE Coated) — Apex Labs

Enhance your mixing efficiency with the Apex Labs 25mm Magnetic Stirrer Bar. Encapsulated in high-grade, chemically inert PTFE (Teflon), this cylindrical stirring bar is designed to withstand aggressive chemicals, strong acids, and high temperatures without leaching or degrading. Featuring a built-in pivot ring for reduced friction and stable vortex creation, it delivers smooth, reliable stirring performance across standard laboratory magnetic hotplate stirrers.

*Image for illustration purposes only. Actual design may vary slightly based on manufacturing batches.

Technical Specifications

• Brand & Supplier: Apex Labs, Varanasi, UP (Made in India)
• Product Type: PTFE Magnetic Stirrer Bar
• Length: 25 mm
• Coating Material: Virgin PTFE (Teflon)
• Core Magnet: High-Strength Alnico V Permanent Magnet
• Chemical Resistance: Inert to virtually all chemicals, acids, and solvents
• Autoclavable: Fully autoclavable and heat resistant up to 250°C

Key Features

• Chemically Inert Coating: Smooth PTFE encapsulation prevents sample contamination and resists corrosive chemical attacks.
• High-Strength Magnetic Core: Powerful internal magnet ensures secure coupling with magnetic stirrers even at elevated speeds and in viscous media.
• Optimized Stability: Balanced cylindrical shape minimizes wobbling and jumping during continuous operation.
• Thermal & Sterilization Resilience: Withstands high temperatures up to 250°C and repeated autoclave sterilization cycles.

Applications

• Chemical Synthesis: Reliable mixing of reagents, solvents, and reaction mixtures in flasks and beakers.
• Biological & Clinical Labs: Preparation of buffer solutions, media formulations, and biological suspensions.
• Educational Laboratories: Standard consumable for school and university chemistry practical demonstrations.