Russian Journal of Non-Ferrous Metals

, Volume 59, Issue 6, pp 589–595 | Cite as

Study on Pure Mercurous Chloride Leaching with Sodium Thiosulfate

  • Chao HanEmail author
  • Wei Wang
  • Feng Xie
  • Guangxin Wang
  • Alex Volinsky
  • Moses Gekhtman


Mercurous chloride (Hg2Cl2), also known as Calomel, is a typical mercury-containing mineral found in nature. In this work, the leaching behaviour of pure mercurous chloride dissolved in pure water and in thiosulfate solution was investigated. The mercurous chloride hardly dissolved in sulfuric acid solution at pH of 3 and pure water at pH of 6.4, with the corresponding maximum Hg extraction percentage at 3.1 and 7.5% respectively. However, the Hg extraction percentage increased to 45.8% in sodium hydroxide solution at pH of 11.2. The mercury extraction percentage reached a high of 62.6% in thiosulfate solution, and the leaching kinetics results show that the activation energy is 6.6 kJ/mol. This study indicates that the thiosulfate solution can efficiently extract mercury from mercurous chloride.


mercurous chloride leaching thiosulfate disproportionate reactions 



The project was supported by National Natural Science Foundation of China (51374054) and the National Science Foundation (IRES 1358088).


  1. 1.
    Knezović, Z., Trgo, M., and Sutlović, D., Monitoring mercury environment pollution through bioaccumulation in meconium, Proc. Safety & Environ. Prot., 2016, vol. 101, pp. 2–8.CrossRefGoogle Scholar
  2. 2.
    Wagner-Döbler, I., Pilot plant for bioremediation of mercury-containing industrial wastewater, Appl. Microbiol. & Biotechnol., 2003, vol. 62, pp. 124–133.CrossRefGoogle Scholar
  3. 3.
    Guentzel, J.L., Powell, R.T., and Landing, W.M., Mercury associated with colloidal material in an estuarine and an open-ocean environment, Mar. Chem., 1996, vol. 55, pp. 177–188.CrossRefGoogle Scholar
  4. 4.
    Bensefa-Colas, L., Andujar, P., and Descatha, A., Mercury poisoning, Rev. Med. Suisse Romande, 2011, vol. 32, no. 7, pp. 416–424.Google Scholar
  5. 5.
    Kudo, A. and Miyahara, S., A case-history Minamata mercury pollution in Japan from loss of human lives to decontamination, Water Sci. Technol., 1991, vol. 23, pp. 283.CrossRefGoogle Scholar
  6. 6.
    Pirrone, N., Cinnirella, S., Feng, X., Finkelman, R.B., and Friedli, H.R., Global mercury emissions to the atmosphere from anthropogenic and natural sources, Atmos. Chem. & Phys. Discuss., 2010, vol. 10, no.13, pp. 5951–5964.CrossRefGoogle Scholar
  7. 7.
    Wang, J., Feng, X., and Anderson, C.W.N., Remediation of mercury contaminated sites–A review, J. Hazard. Mater., 2012, vol. 221–222, pp. 1–18.Google Scholar
  8. 8.
    Garcíasánchez, A., Murciego, A., Alvarezayuso, E., Regina, I.S., and Rodríguezgonzález, M.A., Mercury in soils and plants in an abandoned cinnabar mining area (SW Spain), J. Hazard. Mater., 2009, vol. 168, no. 2, pp. 1319–1324.CrossRefGoogle Scholar
  9. 9.
    Ana Teresa Reis, Sónia Morais Rodrigues, Clarisse Araújo, João Pedro Coelho, Eduarda Pereira, and Armando C. Duarte, Mercury contamination in the vicinity of a chlor-alkali plant and potential risks to local population, Sci. Total Environ., 2009, vol. 407, no. 8, pp. 2689–2700.CrossRefGoogle Scholar
  10. 10.
    Fernández-Martínez, R., Loredo, J., Ordóñez, A., and Rucandio, M.I., Distribution and mobility of mercury in soils from an old mining area in Mieres, Asturias (Spain), Sci. Total Environ., 2005, vol. 346, no. 1, pp. 200–212.CrossRefGoogle Scholar
  11. 11.
    Rieuwerts, J.S. and Farago, M., Mercury concentrations in a historic lead mining and smelting town in the Czech Republic: a pilot study. Sci. Total Environ., 1996, vol. 188, pp. 167–171.CrossRefGoogle Scholar
  12. 12.
    Stafilov, T., Šajn, R., and Pančevski, Z., Heavy metal contamination of top soils around a lead and zinc smelter in the Republic of Macedonia, J. Hazard. Mater., 2010, vol. 175, pp. 896–914.CrossRefGoogle Scholar
  13. 13.
    Bernaus, A., Gaona, X., and Van-Ree, D., Determination of mercury in polluted soils surrounding a chlor-alkali plant: direct speciation by X-ray absorption spectroscopy techniques and preliminary geochemical characterization of the area, Anal. Chim. Acta, 2006, vol. 565, pp. 73–80.CrossRefGoogle Scholar
  14. 14.
    Dermont, G., Bergeron, M., and Mercier, G., Soil washing for metal removal: A review of physical/chemical technologies and field applications, J. Hazard. Mater., 2008, vol. 152, pp. 1–31.CrossRefGoogle Scholar
  15. 15.
    Rodríguez, O., Padilla, I., and Tayibi, H., Concerns on liquid mercury and mercury-containing wastes: A review of the treatment technologies for the safe storage, J. Environ. Manage., 2012, vol. 101, pp. 197–205.CrossRefGoogle Scholar
  16. 16.
    Ray, A.B. and Selvakumar, A., Laboratory studies on the remediation of mercury contaminated soils, Remediation, 2000, vol. 10, pp. 49–56.CrossRefGoogle Scholar
  17. 17.
    Issaro, N., Besancon, S., and Bermond, A., Thermodynamic and kinetic study of the single extraction of mercury from soil using sodium-thiosulfate, Talanta, 2010, vol. 82, pp. 1659–1667.CrossRefGoogle Scholar
  18. 18.
    Chao, H., Wei, W., and Feng, X., Study on the leaching of mercuric oxide with thiosulfate solutions, Metals, 2016, vol. 6, pp. 206.CrossRefGoogle Scholar
  19. 19.
    Chao, H., Wei, W., Feng, X., and Ting’an, Z., Mechanism and kinetics of mercuric sulfide leaching with cuprous-thiosulfate solutions, Separ. Purif. Technol., 2017, vol. 177, pp. 223–232.CrossRefGoogle Scholar

Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • Chao Han
    • 1
    Email author
  • Wei Wang
    • 2
  • Feng Xie
    • 2
  • Guangxin Wang
    • 1
  • Alex Volinsky
    • 3
  • Moses Gekhtman
    • 4
  1. 1.Research Center for High Purity Materials, School of Materials Science and Engineering, Henan University of Science and TechnologyLuoyangChina
  2. 2.School of Metallurgy, Northeastern UniversityShenyangChina
  3. 3.Department of Mechanical Engineering, University of South FloridaTampaUSA
  4. 4.College of Liberal Arts and Sciences, University of FloridaGainesvilleUSA

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