The hydrothermal synthesis reactor is also known as high pressure disintegration tank, hydrothermal reactor, pressure dissolution bomb, high pressure digestion tank. It is used for the rapid disintegration of insoluble substances by using strong acid or alkali in a closed environment with high temperature and pressure. It can be used in the determination of heavy metals such as lead, copper, cadmium, zinc, calcium, manganese, iron, mercury, etc. It can also be used as a reaction vessel for high temperature and high pressure corrosion resistance and high purity, as well as for organic synthesis, hydrothermal synthesis, crystal growth or sample ablation and extraction. In sample pre-treatment ablation of heavy metals, sludges, rare earths, aquatic products, organic matter, etc. Therefore, it is widely used in research and production in petrochemical, biomedical, material science, geochemistry, environmental science, food science, commodity inspection and other sectors.