A simple, rapid, and selective complexometric method is proposed for the determination of mercury(II). Mercury(II) is first complexed with excess of EDTA and the surplus EDTA is back-titrated (pH 5-6) with zinc sulphate solution, with Xylenol Orange as indicator. 4-Amino-5-mercapto-3-propyl-1,2,4-triazole is then added to displace EDTA from the Hg-EDTA complex and the released EDTA is titrated with zinc sulphate solution. Reproducible and accurate results are obtained in the range 1-40 mg of mercury, with a relative error of approximately 0.4%. © 1982.
| dc.contributor.author | Gadiyar, H.R.A. | |
| dc.contributor.author | Gadag, R.V. | |
| dc.contributor.author | Gajendragad, M.R. | |
| dc.date.accessioned | 2026-02-05T11:00:45Z | |
| dc.date.issued | Complexometric determination of mercury(II) by use of 4-amino-5-mercapto-3-propyl-1,2,4-triazole as replacing reagent | |
| dc.description.abstract | 1982 | |
| dc.identifier.citation | Talanta, 1982, 29, 11 SUPPL. 1, pp. 941-942 | |
| dc.identifier.issn | 399140 | |
| dc.identifier.uri | https://doi.org/10.1016/0039-9140(82)80157-4 | |
| dc.identifier.uri | https://idr.nitk.ac.in/handle/123456789/28141 | |
| dc.title | A simple, rapid, and selective complexometric method is proposed for the determination of mercury(II). Mercury(II) is first complexed with excess of EDTA and the surplus EDTA is back-titrated (pH 5-6) with zinc sulphate solution, with Xylenol Orange as indicator. 4-Amino-5-mercapto-3-propyl-1,2,4-triazole is then added to displace EDTA from the Hg-EDTA complex and the released EDTA is titrated with zinc sulphate solution. Reproducible and accurate results are obtained in the range 1-40 mg of mercury, with a relative error of approximately 0.4%. © 1982. |