ultrasonic cleaning machine technology is a relatively new field of acoustics nowadays. Ultrasonic waves act on chemical reactions, mainly utilizing the phenomenon of ultrasonic cavitation. A large number of experiments have proved that ultrasonic waves can be widely applied to various reactions, including:   (1) Analytical Chemistry Ultrasonic waves have become a conventional synthesis technique for many organometallic compounds. In the synthesis of Grignard reagents, the traditional method requires the use of strictly dried ether and the addition of a small amount of iodine as an inducer. Under ultrasonic radiation, this reaction can be carried out with ordinary reagent-grade ether without drying, and the induction period of the reaction is also shortened to just a few seconds. This discovery is of great significance for the industrial production of Grignard reagents. The application of ultrasonic radiation in homogeneous and heterogeneous catalytic reactions can continuously remove the reactants adsorbed on the catalyst surface, exposing new catalytic surfaces, thereby effectively maintaining the activity of the catalyst.
    (2) In the field of polymer chemistry, such as polymerization reactions and polymer degradation reactions.
    (3) In terms of electrochemistry, when ultrasonic waves are directly introduced into the electroplating tank, due to cavitation, the deposition rate is increased and the current density is enhanced.
    (4) In the field of synthetic chemistry, especially in the application research of ultrasound in organic synthesis, the development has been rapid. The main research objects are heterogeneous reactions, particularly organometallic. Ultrasonic crushing and surface activation may potentially replace phase transfer catalyst (PTC) reactions. This includes reactions involving metal surfaces (such as accelerated catalytic reactions), reactions involving powdered solid particles, emulsification reactions, and homogeneous reactions.
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