Then the sample is heated by the bottom temperature control plate, and with the rotation of the magnetic stirrer, the sample is heated evenly to reach the specified temperature; By adjusting the heating power, the heating rate can be controlled, which is suitable for a wider sample treatment process.
The general magnetic stirrer has two functions: stirring and heating.
Specifically:
The first function is to make the reactants mix evenly and the temperature uniform;
The second function is to speed up the reaction or evaporation and shorten the time.
Extended data
Matters needing attention in using magnetic stirrer:
1. When the stirrer is beating or not stirring, please cut off the power supply and check whether the bottom of the beaker is flat and the position is right. In the meantime, please measure it. The current voltage is between 220 V 10 V, otherwise the above situation will occur.
2. Generally, heating time should not be too long. Intermittent use will prolong the service life, and it will not heat up without stirring.
3. The medium-speed operation can work continuously for 8 hours, and the high-speed operation can work continuously for 4 hours to prevent severe vibration during work.
4. Electricity: The power socket should be a three-hole safety socket and must be grounded correctly.
5, the instrument should be kept clean and dry, it is forbidden to solution into the machine, so as not to damage the machine, should cut off the power supply when not working.
Baidu encyclopedia-magnetic stirrer