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砷酸盐的溶解度及其稳定性随pH值的变化

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朱义年, 张学洪, 解庆林, 陈余道, 王敦球, Broder Merkel. 砷酸盐的溶解度及其稳定性随pH值的变化[J]. 环境化学, 2003, 22(5): 478-484.
引用本文: 朱义年, 张学洪, 解庆林, 陈余道, 王敦球, Broder Merkel. 砷酸盐的溶解度及其稳定性随pH值的变化[J]. 环境化学, 2003, 22(5): 478-484.
shu
ZHU Yi-nian, ZHANG Xue-hong, XIE Qing-lin, CHEN Yu-dao, WANG Dun-qiu, Broder Merkel. DEPENDENCE OF ARSENATE SOLUBILITY AND STABILITY ON pH VALUE[J]. Environmental Chemistry, 2003, 22(5): 478-484.
Citation: ZHU Yi-nian, ZHANG Xue-hong, XIE Qing-lin, CHEN Yu-dao, WANG Dun-qiu, Broder Merkel. DEPENDENCE OF ARSENATE SOLUBILITY AND STABILITY ON pH VALUE[J]. Environmental Chemistry, 2003, 22(5): 478-484.
shu

砷酸盐的溶解度及其稳定性随pH值的变化

  • 1.

    桂林工学院资源与环境工程系, 桂林, 541004;

  • 2.

    Institute for Geology, Freiberg University of Mining and Technology, Gustav-Zeuner Str.12, D09596 Freiberg, Germany

  • 基金项目:

    国家自然科学基金(40263001)

    德国科学基金(DFG)资助项目

DEPENDENCE OF ARSENATE SOLUBILITY AND STABILITY ON pH VALUE

  • 1.

    Department of Resources and Environmental Engineering, Guilin Institute of Technology, Guilin, 541004;

  • 2.

    Institute for Geology, Freiberg University of Mining and Technology, Gustav Zeuner Str.12, D-09596 Freiberg, Germany

  • Fund Project:

  • 摘要: 本文讨论了铁、钙和钡的砷酸盐在水环境中的溶解度与稳定性, 着重分析了砷酸盐在水中发生不一致性溶解与稳定性的关系.同时藉助PHREEQC程序, 探讨了砷酸铁溶解时, 其溶解度、砷的存在形式与pH值的关系, 以及共存的氢氧化铁对稳定性的影响, 并作出了Ca-As 水和Ba-As 水体系的lg[As] pH相图.
    Abstract: The solubility and stability of Fe,Ca and Ba arsenates were discussed.Especially the relationship between arsenate stability and incongruent dissolution in water was analyzed.With help of the PHREEQC program,the solubility and the existing species of As during scorodite dissolution were researched.The result shows that the co-existing ferric hydroxides could also affected the dissolution and stability of scorodite.The lg[as]-ph stability diagrams for the ca-as-water systerm and dthe ba-as-water systerm were drawn in the paper.
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  • [1] Chukhlantsev V G,Solubility Products of Arsenates.Journal of Inorganic Chemistry(USSR),1956,1∶1975-1982
    [2] Nishimura T,Tozawa K,On the Solubility Products of Ferric,Calcium and Magnesium Arsenates.Bulletin of the Research.Institute of Mineral Dressing and Metallurgy(Tohoku University),1978,34∶20-26
    [3] Makhmetov M Z,Sagadieva A K,Chuprakov V I,Solubility of Iron Arsenate,Journal of Applied Chemistry(USSR),1981,54∶823-824
    [4] Dove M P,Rimstide J D,The Solubility of Scorodite,FeAsO4·2H2O.American Mineralogist,1985,70∶838-844
    [5] Robins R G,The Solubility of Scorodite,FeAsO4·2H2O;Discussion American Mineralogist,1987,72∶842-844
    [6] Krause E,Ettel V A,The Solubility of Scorodite,FeAsO4·2H2O;New Data and Further Discussion.American Minera-logist,1988,73∶850-854
    [7] Swash P M,Monhemius A J,The Disposal of Arsenic Wastes;Technologies and Environmental Considerations.In;Roberts N J(Ed.),International Minerals and Metals Technology.Sabrecrown Publishing,London,1995,121-125
    [8] Mahapatra P P et al.,Solubility of Calcium Hydrogen Arsenate in Aqueous Medium.Indian J.Chem.,1986,25A∶647-649
    [9] Bothe J V,Brown P W,The Stabilities of Calcium Arsenates at 23℃.J.of Hazardous Materials,1995,B69∶197-207
    [10] Robins R G,The Solubility of Barium Arsenates;Sherritts Barium Arsenate Process.Metallurgical Transactions.1985,16B∶404-406
    [11] Essington M E,Solubility of Barium Arsenate.Soil Sci.Soc.Am.Div.S-2-Soil Chem.,1988,52∶1566-1570
    [12] Davis,Jason,Control of Arsenic Solubility by Iron,Barium,and Copper Solids.Abstracts,Pre-Congress Workshop(Bwo 10),Arsenic in Groundwater of Sedimentary Aquifer(editors;Bhattacharva P and Welch A H).31st International Geological Congress,2000,Rio de Janeiro,Brazil.38-40
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朱义年, 张学洪, 解庆林, 陈余道, 王敦球, Broder Merkel. 砷酸盐的溶解度及其稳定性随pH值的变化[J]. 环境化学, 2003, 22(5): 478-484.
引用本文: 朱义年, 张学洪, 解庆林, 陈余道, 王敦球, Broder Merkel. 砷酸盐的溶解度及其稳定性随pH值的变化[J]. 环境化学, 2003, 22(5): 478-484.
shu
ZHU Yi-nian, ZHANG Xue-hong, XIE Qing-lin, CHEN Yu-dao, WANG Dun-qiu, Broder Merkel. DEPENDENCE OF ARSENATE SOLUBILITY AND STABILITY ON pH VALUE[J]. Environmental Chemistry, 2003, 22(5): 478-484.
Citation: ZHU Yi-nian, ZHANG Xue-hong, XIE Qing-lin, CHEN Yu-dao, WANG Dun-qiu, Broder Merkel. DEPENDENCE OF ARSENATE SOLUBILITY AND STABILITY ON pH VALUE[J]. Environmental Chemistry, 2003, 22(5): 478-484.
shu

砷酸盐的溶解度及其稳定性随pH值的变化

  • 1.  桂林工学院资源与环境工程系, 桂林, 541004;
  • 2.  Institute for Geology, Freiberg University of Mining and Technology, Gustav-Zeuner Str.12, D09596 Freiberg, Germany
基金项目:

国家自然科学基金(40263001)

德国科学基金(DFG)资助项目

摘要: 本文讨论了铁、钙和钡的砷酸盐在水环境中的溶解度与稳定性, 着重分析了砷酸盐在水中发生不一致性溶解与稳定性的关系.同时藉助PHREEQC程序, 探讨了砷酸铁溶解时, 其溶解度、砷的存在形式与pH值的关系, 以及共存的氢氧化铁对稳定性的影响, 并作出了Ca-As 水和Ba-As 水体系的lg[As] pH相图.

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