Application of agitator in organic chemistry laboratory
The agitator is one of the essential instruments for organic chemistry experiments. It can make the reaction mixture more uniform and the temperature of the reaction system is more uniform, which is beneficial to the chemical reaction, especially the heterogeneous reaction. So how is the agitator used in the organic chemistry lab? Lebe is coming to discuss this issue today. First, there are three ways to stir the agitator : manual agitation, magnetic agitation, and mechanical agitation. Manual agitation is generally carried out by means of a glass rod, magnetic stirring using a magnetic stirrer and mechanical agitation using a mechanical stirrer. There are two types of IKA mixers , one is a magnetic stirrer and the other is an overhead mechanical stirrer. The magnetic stirrer is easy to install. Therefore, the magnetic stirrer can be used for continuous stirring, especially when the reaction amount is relatively small or the reaction is carried out under closed conditions, and the magnetic stirrer is more convenient to use. However, the magnetic stirrer also has the disadvantage that the magnetic stirrer cannot be used smoothly for some viscous liquids or reactions involving a large amount of solids . The mechanical stirrer should be used as the stirring power. The magnetic stirrer uses the rotation of the magnetic field to drive the rotation of the magnetic stirrer. The magnetic stirrer is a small piece of metal wrapped with a layer of inert material (such as Teflon, etc.). If the lab doesn't want to buy it, it can be made by itself: use a piece of 10# iron wire to put it into a thin glass tube or plastic. In the tube, the ends are sealed. The size of the magnetic stirrer is generally 10mm, 20mm, 30mm, 40mm long (there are longer magnetic stirrers, which are not listed here). The shape of the magnetic stirrer is cylindrical, oval and round. Etc., we can choose different magnetic stirrers according to the scale of the experiment. The mechanical agitator mainly includes three parts: an electric motor, a stirring rod and a stirring sealing device. The motor is the power part of the mechanical agitator, fixed on the bracket, and its speed is adjusted by the governor (such as the ika RW20 mechanical agitator ). The stirring rod is connected with the electric motor. When the power is turned on, the electric motor drives the stirring rod to rotate and stirs. The stirring sealing device is a device for connecting the stirring rod and the reactor, and the reaction can be carried out in the sealing system. The agitation efficiency of a mechanical agitator is largely dependent on the structure of its agitator. We can choose a suitable stirring rod according to the size and shape of the reactor, the size of the bottle mouth and the reaction conditions. Canned Other Fungus,Other Fungus Canned,Other Fungus Tin,Fungus Canned ZHANGZHOU TAN CO. LTD. , https://www.zztancan.com
ikaRCT basic magnetic stirrer 
Ika RW20 mechanical agitator