# BBTCTY PTFE Magnetic Stirrer Mixer Stir Bars Olive Shape 8mm x 20mm, Pack of 10 | Inert & Non-Toxic Lab Consumables **Brand:** BBTCTY **SKU:** rza2664 **ASIN:** B07461T2PR **Canonical URL:** https://crowcrowcrow.com/p/ptfe-magnetic-stirrer-mixer-stir-bars-white-color-olive-shape-diameter-8mm-length-20mm-pcs/rza2664 **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹2,182 **Discount:** 30% **Customer rating:** 4.30/5 from 167 ratings ## Description BBTCTY PTFE magnetic stir bars (8x20mm, 10pcs) ensure reliable chemical mixing. Inert, non-toxic, and resistant to extreme temperatures (-196°C to 250°C) and solvents. Ideal for labs in India. Arrives via ExpressBox tracked delivery. ## Highlights - Extreme Temperature & Chemical Resistance — Operates reliably from -196°C to 250°C and resists most chemicals, solvents, strong acids, and alkalis, ensuring performance in diverse lab conditions. - 10 Stir Bars for Lab Flexibility — Pack of 10 olive-shaped PTFE stir bars (8x20mm) provides ample supply for multiple experiments or different vessel sizes, offering cost-effectiveness for your lab. - Inert & Non-Toxic Material — Made from Polytetrafluoroethylene (PTFE), these bars are non-toxic and physiologically inert, preventing contamination and ensuring sample integrity during mixing. - Smooth & Efficient Stirring — High lubrication and non-adhesion properties ensure consistent, wobble-free stirring at various speeds, crucial for precise chemical reactions and formulations. ## Key features - Size:Diameter 8mm (0.32 inch )* Length 20mm (0.8 inch) - Shape: Olives Shape,Number of Items: 10 pcs,Strong acid and alkali resistance for most chemical solvents - Material PTFE (Polytetrafluoroethylene); Color: pure white, - Low temperature drops to -190 degrees, High temperature up to 250 degrees - Non-toxic,No adhesion,High /Low temperature resistance,Weather resistance ## Why choose this product - BBTCTY PTFE magnetic stir bars offer unparalleled chemical inertness and temperature resistance, crucial for accurate scientific work. Unlike some local alternatives that may degrade with harsh solvents or extreme heat, these bars maintain their integrity. Their non-stick surface and low friction coefficient ensure smooth, consistent mixing, preventing sample contamination and ensuring reliable experimental outcomes. This pack of 10 provides excellent value, ensuring you have the right tool for various lab tasks without compromising on quality or safety. — Superior Lab Performance with PTFE - These 8x20mm olive-shaped PTFE stir bars are perfect for Indian research labs, educational institutions, and quality control departments needing reliable chemical mixing. They are ideal for use with a wide range of solvents and at extreme temperatures. However, if your work involves extremely high-viscosity fluids requiring specialized impeller designs, or if you need stir bars with integrated heating elements (magnetic stirrer hot plates), these passive bars alone would be insufficient. For very large industrial mixing vessels, longer or custom-shaped bars might be necessary. — Ideal for Indian Labs, Who Should Consider Alternatives ## How to use 1. Choose a stir bar whose length is about half to two-thirds the diameter of your vessel's base. For 8x20mm bars, this is ideal for smaller flasks or beakers (e.g., 50ml to 250ml). — Select the Right Stir Bar 2. Carefully place the selected stir bar into the liquid you wish to mix. Ensure it is centered at the bottom of the vessel before placing it on the magnetic stirrer. — Place Stir Bar in Vessel 3. Place the vessel containing the liquid and stir bar onto the surface of your magnetic stirrer. Ensure the stir bar is centered over the stirrer's rotating magnet. — Position on Magnetic Stirrer 4. Turn on the magnetic stirrer and gradually increase the speed. The stir bar will begin to rotate, agitating the liquid. Adjust speed for optimal mixing without decoupling. — Adjust Stirring Speed ## Product details | Field | Value | |---|---| | Coating Material | Polytetrafluoroethylene (PTFE) | | Core Material | Magnetic (implied) | | Allergens | None | | Free From | Adhesion, Toxicity | | Application | Chemical mixing, laboratory agitation | | Operating Temperature | -196°C to 250°C | | Chemical Resistance | Resistant to most chemicals, solvents, strong acids, alkalis | | Cost per use | 10 pieces at {{ccc_offer_price}} — {{ccc_price_per_unit:10:piece}} | | Shelf life after opening | Indefinite (non-consumable) | | Contraindications | Not suitable for use without a magnetic stirrer; may not be ideal for extremely high-viscosity fluids without specialized equipment. | | Brand | BBTCTY | | Material | Polytetrafluoroethylene (PTFE) | | Color | White | | Shape | Olive | | Dimensions (Diameter x Length) | 8mm x 20mm | | Quantity | 10 pieces | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### What size magnetic stir bar should I choose for my flask or beaker? Match the bar length to roughly the inner diameter of the vessel bottom — a bar that spans about half to two-thirds of the base stirs efficiently without wobbling. These 20mm bars are suitable for smaller flasks and beakers commonly found in Indian labs. ### Are these stir bars safe for use with solvents and acids? Yes, PTFE (Teflon)-coated bars like these BBTCTY stirrers are chemically inert and stand up well to most solvents and acids used in lab work. They are designed for use with a wide range of chemicals without degradation. ### How to buy an original BBTCTY magnetic stir bar in India? Purchase original BBTCTY magnetic stir bars from crowcrowcrow.com, sourced directly from authorized US retailers. Each item is factory-sealed and imported per-order, with all customs duties and GST included in the price. Delivery is via ExpressBox tracked shipping. ### What is the temperature range for these PTFE stir bars? These BBTCTY PTFE magnetic stir bars can withstand a wide operating temperature range, from a low of -196°C up to a high of 250°C, making them versatile for various laboratory experiments. ### Can I use these stir bars with a magnetic stirrer hot plate? Yes, these stir bars are designed to work with magnetic stirrers and magnetic stirrer hot plates. Their magnetic core will couple with the stirrer's motor to create the desired agitation, and the PTFE coating can handle the heat from a hot plate up to 250°C. ## Compliance These are general laboratory consumables and are not intended for medical, diagnostic, or food-grade applications. Ensure compatibility with your specific chemicals and magnetic stirrer unit. Do not exceed stated temperature limits. ## Images 1. https://images.crowcrowcrow.com/B07461T2PR-0.webp 2. https://images.crowcrowcrow.com/B07461T2PR-3.webp 3. https://images.crowcrowcrow.com/B07461T2PR-6.webp 4. https://images.crowcrowcrow.com/B07461T2PR-9.webp 5. https://images.crowcrowcrow.com/B07461T2PR-12.webp --- Source: https://crowcrowcrow.com/p/ptfe-magnetic-stirrer-mixer-stir-bars-white-color-olive-shape-diameter-8mm-length-20mm-pcs/rza2664 Returns: 30 days, free, by mail. Shipping: Free across India, 7–13 business days. Prices are all-inclusive (duties + GST).