化学试剂在贮存过程中是否会发生变质，取决于内外两个方面的因素，内因是试剂本身化学结构所决定的理化性质；外因则是试剂所处的环境条件。要做到合理保管，一要了解试剂结构与性质间关系，二要创造适应试剂贮存的外部环境。环境主要是指贮存的温度、光照和介质。介质一般是 Whether the chemical reagent will be degraded during storage depends on internal and external factors. The internal factor is the physicochemical property determined by the chemical structure of the reagent itself; the external factor is the environmental condition of the reagent. To achieve reasonable storage, one must understand the relationship between reagent structure and properties, and second, create an external environment that is suitable for reagent storage. The environment mainly refers to the stored temperature, light and medium. Medium is generally