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Citation: Ruitong Zhang, Zhiqiang Zeng, Xiaoguang Zhang. Improvement of Ethyl Acetate Saponification Reaction and Iodine Clock Reaction Experiments[J]. University Chemistry, ;2024, 39(8): 197-203. doi: 10.3866/PKU.DXHX202312004 shu

Improvement of Ethyl Acetate Saponification Reaction and Iodine Clock Reaction Experiments

College of Chemistry, Nankai University, Tianjin 300071, China

Received Date: 4 December 2023
Revised Date: 9 January 2024

This study addresses issues such as low efficiency in maintaining a constant temperature, uneven temperature distribution, uneven mixture, uneven reaction, and large deviations in experimental data observed in the ethyl acetate saponification reaction and iodine clock reaction. To address these problems, improvements are made in two aspects: the reaction vessel and the mixing method of reactants. The use of a jacketed beaker paired with a reaction flask as the reaction vessel and a multi-site magnetic stirrer for rapid mixing of the reactants is proposed. This improvement ensures a uniform and stable temperature in the solution, enhances the uniform dispersion and rapid reaction of the reactants, and enables accurate measurements of solution conductivity and the time for color change. The obtained data provides accurate values for reaction order, rate constant, and activation energy.
- Saponification reaction,
- Iodine clock reaction,
- Jacket beaker,
- Experimental improvement
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