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Magnet bar
Original price was: $ 19.97.$ 19.87Current price is: $ 19.87.
A Magnet Bar, often called a stirring bar or magnetic stir bar, is a laboratory tool used to mix liquids efficiently by magnetic stirring. It consists of a small, coated magnetic rod, typically made from rare-earth magnets encased in chemically resistant materials like PTFE (polytetrafluoroethylene). When placed inside a container with liquid, the magnet bar rotates driven by a magnetic stirrer plate underneath the container, providing uniform and controlled mixing without contamination or the need for manual stirring. Magnet Bars are essential for experiments requiring gentle or continuous mixing, including chemical reactions, sample preparations, and biological assays. Their durable coating ensures resistance to chemicals, heat, and abrasion, making them suitable for diverse laboratory environments.
Magnet bar
Primary Uses
- Laboratory Applications
- Stirring and mixing solutions in beakers, flasks, and other vessels.
- Facilitating homogeneous reactions in chemical synthesis.
- Dissolving solids into liquids efficiently.
- Maintaining uniform suspensions or emulsions during experiments.
- Used in microbiology for mixing culture media.
Secondary Uses
- Industrial and Research Applications
- Mixing samples in pharmaceutical and food industry laboratories.
- Employed in environmental testing for solution homogenization.
- Used in material science for blending components.
1.Basic Identification Attributes
- Material: Magnetic core (rare-earth magnets) coated with PTFE or similar chemically resistant polymer.
- Shape: Cylindrical or oval-shaped rod, various sizes available depending on vessel size.
- Color: Typically white or translucent due to PTFE coating.
2.Physical & Chemical Properties
- Chemical Resistance: Resistant to acids, bases, solvents, and most laboratory reagents.
- Thermal Resistance: Can withstand temperatures up to ~250°C (depending on coating).
- Magnetic Strength: Strong enough to maintain rotation within typical lab stirrer fields.
3.Safety & Hazard Attributes
- Small size presents choking hazard—keep away from children.
- Handle carefully to avoid damage to coating; broken coating exposes magnet and can contaminate samples.
4.Storage & Handling Attributes
- Store in clean, dry conditions away from strong magnetic fields that could demagnetize or damage.
- Inspect for coating integrity before use to prevent contamination.
5.Regulatory & Compliance Attributes
- Manufactured in compliance with laboratory safety and quality standards.
6.Environmental & Health Impact
- PTFE coating is chemically inert but not biodegradable; dispose of responsibly.
- Rare-earth magnets are recyclable but should be handled carefully.
Safety Handling Precautions
- Avoid ingestion and keep away from pacemakers or sensitive electronic devices.
- Use tweezers or appropriate tools to place or remove magnet bars to avoid injury.
First Aid Measures
- In case of accidental ingestion or injury, seek immediate medical attention.
- For minor injuries during handling, clean and disinfect affected area.
Firefighting Measures
- Non-flammable; in case of fire, use standard extinguishing agents suitable for surrounding materials.
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