论文部分内容阅读
测定了磷酸三钾和磷酸氢二钾不同摩尔比的混合溶液在不同温度下的电导率。研究结果表明:电导率随温度的升高而升高,且在其他条件相同的情况下,PO43-浓度较低时电导率随n(K3PO4)/n(K2HPO4)的升高而升高;PO43-浓度较高时,在较低温度范围n(K3PO4)/n(K2HPO4)越低,电导率越高,而在较高温度范围n(K3PO4)/n(K2HPO4)越高,电导率越高。
The conductivity of mixed solutions with different mole ratios of tripotassium phosphate and dipotassium phosphate was measured at different temperatures. The results showed that the conductivity increased with the increase of temperature, and under the same conditions, the conductivity of PO43- increased with the increase of n (K3PO4) / n (K2HPO4) At higher concentrations, the lower the n (K3PO4) / n (K2HPO4) in the lower temperature range, the higher the conductivity and the higher the higher n (K3PO4) / n (K2HPO4) in the higher temperature range, the higher the conductivity .