What are magnetic stirrers used for?
A magnetic stirrer is a device widely used in laboratories and consists of a rotating magnet or a stationary electromagnet that creates a rotating magnetic field. This device is used to make a stir bar, immerse in a liquid, quickly spin, or stirring or mixing a solution, for example.
How do beaker stirrers work?
How does it work? A stir bar magnet is placed inside a container, immersed in the fluid. A separate magnet (or magnets) is placed underneath the container, so that it attracts to the stir bar magnet. The lower magnet is usually attached to a motor that spins it.
Do magnetic stirrers heat up?
The magnetic field causes a stirring bar, immersed within the sample, to spin at a predefined speed (up to 2,500 rpm). Magnetic stirrers do not include a heating element.
What are magnetic stirrers 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.
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.
How do chemistry stirrers work?
Magnetic stirrers use a rotating magnetic field to move a stir bar around in liquid samples. The movement of this stir bar mixes the sample thoroughly with rapid movement and agitation. The speed of the magnetic field is controlled by the user, so it can be customized to the specific sample that’s being stirred.