Measurement of Mineral Solubilities in the Quaternary Systems KCI-MgCl2-ZnCl2-H2O and KCI-MgCl2-PbCl2-H2O at 373 K

作者：Zhang, Xue-Ping; Wang, Wei; Yang, Yu-Yan; Dai, Fu-Peng; Sang, Shi-Hua^*

来源：Journal of Chemical and Engineering Data, 2017, 62(4): 1403-1410.

DOI：10.1021/acs.jced.6b00960

• TERNARY-SYSTEMS
• LEAD CHLORIDE
• DENSITY

In this work, the solubilities of the salt minerals in quaternary systems potassium chloride-magnesium chlor ide-zinc chloride-water and potassium chloride-magnesium chloride-lead chloride-water were measured at 373 K using an isothermal dissolution equilibrium method. Phase diagrams were constructed based on compositions of saturated liquid, phase and existing equilibrium solid phase. By X-ray powder diffraction identification, a variety of solid forms were deter-mined for the quaternary system KCl-MgCl2-ZnCl2-H2O at 373 K. Not only were three single salts KCl, ZnCl2, and MgCl2 center dot 6H(2)O determined but also three double salts KCl center dot MgCl2 center dot 6H(2)O(Car), 2KCl center dot ZnCl2 and MgCl2 center dot ZnCl2 center dot 5H(2)O were detected. It also demonstrated that five precipitates KCl, MgCl2 center dot 6H(2)O, KCl center dot MgCl2 center dot 6H(2)O(Car), KCl center dot 2PbCl(2), and PbCl2 were formed in the quaternary system KCl-MgCl2-PbCl2-H2O at 373 K.

• 出版日期2017-4
• 单位成都理工大学