Abstract: Laboratories host a diverse array of chemicals, including a category that is particularly hazardous, often leading to various accidents yet holding crucial importance in human life-hazardous chemicals. Contact with these chemicals is unavoidable in laboratories, underscoring the need to understand their properties, accurately classify them, and ensure proper storage and safe handling. This article adopts the perspective of Peace Ambassador Qiqi, guiding readers through the various tribes of the hazardous chemicals kingdom. It introduces the classification and storage methods of these chemicals in laboratories, aiming to enhance awareness and promote safe practices to prevent laboratory accidents.

Key words: Laboratory, Hazardous chemicals, Classification, Science popularization