Journal of Radioanalytical and Nuclear Chemistry

, Volume 200, Issue 6, pp 509–520 | Cite as

Extraction and separation of mercury using 3,4,4a,5-tetrahydro-3, 3,4a-trimethyl-7-(substituted)-pyrimido [1,6-a] benzimidazole-1-thiol (PBT) and its application to industrial effluents

  • R. Sahu
  • S. M. Sondhi
  • B. Gupta
Article

Abstract

A selective method for the extraction of mercury(II) from hydrochloric acid solution with 3,4,4a,5-tetrahydro-3,3,4a-trimethyl-7-(substituted)-pyrimido [1,6-a]-benzimidazole-1-thiol, (PBT) is proposed. The extraction ability of the system was studied both in strongly acidic (6 mol dm−3 HCl) and alkaline (pH 12) media. The optimum extraction conditions were evaluated from a critical study of the effect of pH, PBT concentration and metal ion concentration. The probable composition of the species has been deduced from lg-lg plots and an extraction mechanism is suggested. A separation scheme is proposed. The method has been applied for the determination of Hg (II) in industrial waste water.

Keywords

Waste Water Mercury Hydrochloric Acid Industrial Waste Extraction Condition 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J.M. Wood,Science, 183 (1974) 1049.PubMedGoogle Scholar
  2. 2.
    B.F. Shraydeh, A.Z. Abu Zuhri, M.A. Hannoun,Spectrosc. Lett., 19 (1986) 929.Google Scholar
  3. 3.
    M.C. Eshwar, C.D. Sharma,Indian J. Technol., 24 (1986) 161.Google Scholar
  4. 4.
    L. Sommer, V. Kuban, M. Langova,Frensenius' Z. Anal. Chem., 310 (1982) 51.Google Scholar
  5. 5.
    Miwa Shigeru, Furukawa Masamichi, Shibata Shozo,Anal. Chim. Acta., 120 (1980) 405.Google Scholar
  6. 6.
    M.S. Saleh, H. Sedaria,Analyst, 112 (1987) 1685.Google Scholar
  7. 7.
    H.R.A. Gadiyar, R.V. Gadag, M.R. Gajendragad,Talanta, 29 (1982) 941.Google Scholar
  8. 8.
    J.C. Majumdar, B.C. Haldar,Radiochem. Radioanal. Lett., 45 (1980) 193.Google Scholar
  9. 9.
    R.K. Sahu, A. Magan, B. Gupta, S.M. Sondhi, R.C. Srimal, G.K. Patnaik,Phosphorous, Sulphur and Silicon, 88 (1994) 45.Google Scholar
  10. 10.
    S.M. Sondhi, A. Magan, R. Sahu, V.K. Mahesh, R. Shukla, G.K. Patnaik,Synthesis, 11 (1994) 1175.Google Scholar
  11. 11.
    R. Sahu, S.M. Sondhi, B. Gupta,Talanta (in press).Google Scholar
  12. 12.
    APHA, 1985, Standard Methods for Water and Waste Water Analysis, Boyd Progress, Springfield Publication, New York, 1985, pp. 165.Google Scholar

Copyright information

© Akadémiai Kiadó 1995

Authors and Affiliations

  • R. Sahu
    • 1
  • S. M. Sondhi
    • 1
  • B. Gupta
    • 1
  1. 1.Department of ChemistryUniversity of RoorkeeRoorkeeIndia

Personalised recommendations