Acta Phys. -Chim. Sin. ›› 2010, Vol. 26 ›› Issue (04): 811-816.doi: 10.3866/PKU.WHXB20100114

• THERMODYNAMICS,THERMOCHEMISTRY AND SOLUTION CHEMISTRY • Previous Articles     Next Articles

Solubility Analysis of Americiumin Yuci Groundwater

CHEN Tao, WANG Xiang-Yun, TIAN Wen-Yu, SUN Mao, LI Chun, LIU Xiao-Yu, WANG Lu-Hua, LIU Chun-Li   

  1. Beijing National Laboratory for Molecular Sciences, Radiochemistry & Radiation Chemistry Key Laboratory for Fundamental Sciences, Institute of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
  • Received:2009-08-05 Revised:2009-09-16 Published:2010-04-02
  • Contact: LIU Chun-Li E-mail:liucl@pku.edu.cn

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Abstract:

The solubility of americiumin Yuci groundwater was analyzed using a newly developed geochemical code CHEMSPEC and the influence of pH, groundwater composition, and temperature on its solubility was also investigated. The results indicate that the pH, the total carbonate concentration, and the temperature have obvious influences on solubility while the sulfate and chloride concentrations do not. The solubility of americiumin Yuci groundwater is 1.4×10-10-6.3×10 -3 mol·L-1. The maximum solubility was obtained at 25 ℃, pH=6.0, and a total carbonate concentration of 1×10-5 mol·L-1. These data can be used to predict the diffusion and migration behavior of americiumin the aquifer.

Key words: Americium, Solubility, CHEMSPEC software, Yuci groundwater, Diffusion and migration