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1.
National Demonstration Center for Experimental Chemistry Education (Wuhan University), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China;
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2.
National Demonstration Center for Experimental Chemistry Education (Zhejiang University), Department of Chemistry, Zhejiang University, Hangzhou 310058, China;
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3.
National Demonstration Center for Experimental Chemistry Education (Xiamen University), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, China;
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4.
National Demonstration Center for Experimental Chemistry Education (University of Science and Technology of China), School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China;
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5.
National Demonstration Center for Experimental Chemistry Education (Nanjing University), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China;
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6.
National Demonstration Center for Experimental Chemistry Education (Inner Mongolia Minzu University), College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, Inner Mongolia Autonomous Region, China;
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7.
National Demonstration Center for Experimental Chemistry and Chemical Engineering Education (Zhejiang University of Technology), College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China;
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8.
National Demonstration Center for Experimental Chemistry Education (Guangxi Normal University), School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi Zhuang Autonomous Region, China;
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9.
National Demonstration Center for Experimental Chemistry Education (Fudan University), Department of Chemistry, Fudan University, Shanghai 200433, China;
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10.
School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China;
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11.
National Demonstration Center for Experimental Chemistry Education (Dalian University of Technology), School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning Province, China;
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12.
National Demonstration Center for Experimental Chemistry Education (Peking University), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China;
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13.
National Demonstration Center for Experimental Chemistry Education (Nankai University), College of Chemistry, Nankai University, Tianjin 300071, China;
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14.
National Demonstration Center for Experimental Chemistry Education (Jilin University), College of Chemistry, Jilin University, Changchun 130012, China;
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15.
School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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Received Date:
03 July 2025
Accepted Date:
21 July 2025
Available Online:
30 October 2025
Abstract:
Drying is a high-frequency fundamental operation in chemical experiments. Mastering the principles of drying chemical substances, selecting appropriate drying methods based on different substances’ characteristics and drying requirements, and performing drying operations correctly and standardly are essential basic knowledge and experimental skills that undergraduate students in chemistry and related fields must acquire. This article introduces the types, properties, and applicable ranges of commonly used desiccants in laboratories, the frequently-used drying methods and drying principles for chemical substances in different states, as well as the usage of common drying equipment including glass dryers, air-blast drying ovens, vacuum drying ovens, and freeze dryers. It also provides corresponding operational suggestions, aiming to serve as a reference for domestic peers in experimental teaching and scientific research practices.