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Product introduction: The separatory funnel is a type of glass laboratory apparatus, especially used for chemical experiments. It consists of a funnel body and a cover on top of the body. The lower opening of the funnel body is equipped with a three-way piston, with each end of the piston connected to a lower tube. By using this apparatus, the experimental operations can be controlled conveniently, reducing labor intensity. When a large amount of liquid needs to be separated, the two liquids in the funnel body can be simultaneously poured into the lower tube by manipulating the three-way piston, eliminating the need to replace containers and completing the process in one step. In the middle school stage, the main function of the separatory funnel is to control the rate of chemical reactions.