Magnetic Stirrer

The magnetic stirrer is mainly used for stirring or heating low-viscosity liquid or solid-liquid mixtures at the same time. The basic principle is to use the principle of homogeneous repulsion and heterogeneous attraction of the magnetic field to push the magnetic stirrer placed in the vessel to run in a circular motion, so as to achieve the purpose of stirring the liquid. Together with the heating temperature control system, the sample temperature can be heated and controlled according to the specific experimental requirements to maintain the temperature conditions required for the experimental conditions and to ensure that the liquid mixture meets the experimental requirements.

The Working Principle Of Magnetic Stirrer

The magnetic stirrer uses the property that magnetic substances are homogeneous and repulsive to drive the rotation of the magnetic stirrer by constantly changing the polarity of the two ends of the base, and the rotation of the magnetic stirrer drives the rotation of the sample to make the sample evenly mixed.

Heating of the sample by the bottom temperature control plate, with the rotation of the magnetic stirrer to heat the sample evenly to the specified temperature.

The heating power is adjusted to allow a controlled rate of temperature rise for a wider range of sample-handling processes.

A general magnetic stirrer has two roles: stirring and heating.

Specifically.

The first role is to mix the reactants well and to make the temperature uniform.

The second role is to speed up the reaction rate, or evaporation rate, and shorten the time.

The Precautions Of Magnetic Stirrer

1. Stirring found when the stirrer jumping or not stirring, please cut off the power to check whether the bottom of the beaker is flat and whether the position is positive, and please measure the voltage is now used between 220V ± 10V, otherwise, the above situation will occur.

2. The heating time should not be too long, intermittent use to extend the life, and not stirring when not heating.

3. Medium-speed operation can work continuously for 8 hours, and high-speed operation can work continuously for 4 hours, to prevent violent vibration when working.

4. Electricity: the power socket should be a three-hole safety socket, and must be properly grounded.

5. The instrument should be kept clean and dry, forbid the solution to flow into the machine to avoid damage to the machine, and cut off the power when not working.