The glass reactor is also called a jacketed glass reactor.There are two types of glass reactors: single-layer glass reactor and double-layer glass reactor. They are mainly used to heat or cool the react materials thermostatically and stir them. The reactors can be used to conduct vacuum stirring reaction, distillation and concentration, separation and extraction and materials heating. After reaction, materials can be easily released from the cover or the lower outlet of the reactor. Moreover, the reactor is universally employed in chemical experiments, fine chemicals industry, biologic pharmacy and synthesis of new materials.