文档介绍：
用电导率法测量硫酸钠在高温饱和水中的
溶解度#
田敬,王栋**
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(西安交通大学动力工程多相流国家重点实验室,西安 710049)
摘要:针对传统溶解度测量方法的不足,找到了一种简便、安全、高效的测量方法——电导
率法。首先,通过实验验证了电导率随硫酸钠溶液浓度的增大先增大后减小的趋势,提出将
电导率最大值所对应的溶液浓度作为硫酸钠的溶解度,以此来测量硫酸钠在高温饱和水中的
溶解度;然后,根据这一原理,自行设计和制造了高温高压反应釜,运用电导率法测量硫酸
钠在高温饱和水中的溶解度。测量结果发现,随着温度的升高,硫酸钠在高温饱和水中的溶
解度呈逐渐下降的趋势。
关键词:溶解度;电导率法;高温高压;硫酸钠
中图分类号:O6-334
The application of the conductivity method to measure the
solubility of Na2SO4 in the high temperature saturated
water
Tian Jing, Wang Dong
(State Key Laboratory of Multiphase Flow in Power Engineering, XJTU, Xi'an 710049)
Abstract: A simple, safe and efficient measuring method—conductivity method—is proposed for
the ings of the traditional measuring method of solubility. Firstly, the trend which with
the solution concentration increasing, the conductivity first increases and then decreases is verified
by the experiments, and the solution concentration of the maximum conductivity can be regarded
as the solubility of Na2SO4, which is the measuring principle of the solubility of Na2SO4 in the
high temperature saturated water; then, the high temperature and high pressure reactor is designed
and made based on the measuring principle, and the solubility of Na2SO4 in the high temperature
saturated water is measured by the conductivity method. The result shows that the solubility of
Na2SO4 in the high temperature s