What is inside a magnetic stir bar?
Normally, the magnetic stirrer consists of a magnetic needle that is immersed in the container carrying the mixture of nanomaterial and the base fluid and that rotates due to the rotating magnetic field generated with the help of electromagnets present inside the stirrer instrument.
How do you make a cheap portable magnetic stirrer?
The stir bar is made of two magnets embedded in the moldable plastic. Simply place the plastic in a container of hot water until it turns clear. Place two magnets (polarities opposite facing) onto the plastic and surround with more of the moldable plastic until the magnets are covered.
What is magnetic stirrer made of?
Stir bars are typically coated in PTFE, or, less often, in glass; the coatings are intended to be chemically inert, not contaminating or reacting with the reaction mixture they are in. Glass may be viable as an alternative if PTFE is unsuitable.
Can magnetic stirrers be heated?
Depending on the application, you can configure your magnetic stirrer with hot plates to heat your samples as they’re stirred. With the use of heating plates, you can mix a wide variety of samples for different applications.
What is the best magnetic stirrer?
the best laboratory magnetic stirrers
- AREX-6 Connect PRO Hot Plate Stirrer.
- AREX-6 Digital PRO Hot Plate Stirrer.
- MSL 25 Digital – High Volume Magnetic Stirrer.
- MSL 50 Digital – High Volume Magnetic Stirrer.
- MSL 8 – High Volume Magnetic Stirrer.
- MSL 8 Digital – High Volume Magnetic Stirrer.
- MST Digital Magnetic Stirrer.
What is the working principle of magnetic stirrer?
Magnetic stirrer working principle is repulsive for like charges and attractive for unlike charges . Micro motor drives magnet to generate rotating magnetic field to stir the stirring bar in vessel, making solution conduct completely mixed reaction, stirring speed is adjustable, widely applies to solvent stirring in different viscosity.
What is the use of a magnetic stirrer?
A magnetic stirrer is an equipment used to create rotating magnetic field. The magnetic stirrer is designed such that there is a small bar magnet and a stand or plate containing the rotating magnet. In general the bar magnet is coated with plastic and plate contains rotating magnet.
How does a magnetic stirrer work?
A magnetic stirrer or magnetic mixer is a laboratory device that employs a rotating magnetic field to cause a stir bar (or flea) immersed in a liquid to spin very quickly, thus stirring it. The rotating field may be created either by a rotating magnet or a set of stationary electromagnets, placed beneath the vessel with the liquid.