Citation: Siyu Guo, Zhiye Chen, Jianzhao Liu, Yixuan Wang, Xinjian Feng, Shujin Li. Determination of Chloride Ion Content in Soy Sauce by Conductometric Precipitation Titration: A Recommended Undergraduate Chemistry Experiment[J]. University Chemistry, ;2026, 41(4): 372-379. doi: 10.12461/PKU.DXHX202502015 shu

Determination of Chloride Ion Content in Soy Sauce by Conductometric Precipitation Titration: A Recommended Undergraduate Chemistry Experiment

College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu Province, China

Corresponding author: Xinjian Feng, Shujin Li,
Received Date: 8 February 2025
Accepted Date: 25 April 2025

Introducing the conductometric precipitation titration method for determining chloride ion content in soy sauce into undergraduate physical chemistry laboratory courses enables students to gain a comprehensive understanding of both the theoretical principles and practical applications of conductometric titration. This experiment not only raises students' awareness of food safety issues but also cultivates their social responsibility and commitment to public service. With its relevance to daily life, the experiment effectively stimulates students' interest in laboratory work. Utilizing standard laboratory equipment and reagents, the procedure can be completed within 3–4 hours, meeting the requirements for fundamental experiments in undergraduate curricula.
- Conductivity titration,
- Precipitation titration,
- Conductivity,
- Physical chemistry experiment
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