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通过对直径约200～500μm的NaClO4微液滴在风化和潮解过程的研究,观测到NaClO4微液滴在相对湿度为20%时发生结晶析出和在相对湿度为45%时结晶发生潮解,表明NaClO4微液滴在相对湿度20%～45%间处于过饱和状态。设计了包含微电极、观测池和湿度调节装置的微液滴电导率测量系统,并将其应用于NaClO4微液滴风化和潮解过程(相对湿度变化范围为79%～20%)的测量,取得了过饱和状态下NaClO4微液滴的电导值。本工作对溶液临界状态过饱和电导率的测量工作进行了有益的探索性研究。
Through the study of weathering and deliquescence process of NaClO4 microdroplets about 200 ~ 500μm in diameter, it was observed that NaClO4 microdroplets crystallized at relative humidity of 20% and deliquescent at 45% RH, indicating that NaClO4 Micro-droplets in the relative humidity of 20% to 45% in the supersaturated state. A micro-droplet conductivity measurement system including microelectrode, observation cell and humidity regulator was designed and applied to the measurement of NaClO4 micro-droplet weathering and deliquescence (relative humidity range 79% -20%). The conductivity value of NaClO4 micro-droplets in the over-saturated state. In this work, a useful and exploratory research is made on the measurement of the critical saturation state of solution.