Abstract: Residual gas leakage is a common issue during the disassembly of traditional exhaust gas absorption experimental devices. This study designs a novel reactor based on the principle of pressure equilibrium, allowing for the effective production of materials while preventing the leakage of harmful gases. After introducing the design principles and operational procedures of the reactor, we compare the performance of the traditional and new reactors in an undergraduate chemistry laboratory course. The new reactor not only ensures experimental results and efficiency but also significantly reduces residual gas leakage during device disassembly. This advancement minimizes the exposure of laboratory operators to harmful exhaust gases, decreases environmental pollution, and markedly enhances the safety and environmental sustainability of laboratory teaching. It further promotes the integration of environmental protection concepts into chemical laboratory education.

Key words: Gas absorption, Instrument improvements, Chemistry experiments