Indirect complexometric determination of mercury(II) using 1-propane thiol (PT) as a selective masking agent

P. Parameshwara; J. Karthikeyan; A. Nityananda Shetty; Prakash Shetty

Indirect complexometric determination of mercury(II) using 1-propane thiol (PT) as a selective masking agent

P. Parameshwara
, J. Karthikeyan
, A. Nityananda Shetty^*
, Prakash Shetty

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A complexometric method for the determination of mercury(II) in presence of other metal ions is described based on the selective masking action of 1-propane thiol towards mercury(II). Mercury(II) present in a given sample solution is first complexed with an excess of EDTA and the unreacted EDTA is titrated against lead nitrate solution at pH 5-6 (hexamine buffer) using xylenol orange as the indicator. A 0.8% aqueous solution of 1-propane thiol is then added to displace EDTA from the Hg(II)-EDTA complex. The released EDTA is titrated with standard lead nitrate solution as before. Reproducible and accurate results are obtained for 4-85 mg of mercury(II), with relative error less than ±0.23% and coefficient of variation not more than ±0.41%. The effects of various ions were studied. The method is used for the analysis of mercury(II) in its synthetic alloy mixtures and also in complexes.

Original language	English
Pages (from-to)	727-729
Number of pages	3
Journal	Indian Journal of Chemical Technology
Volume	12
Issue number	6
Publication status	Published - 01-11-2005

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering

Cite this

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title = "Indirect complexometric determination of mercury(II) using 1-propane thiol (PT) as a selective masking agent",

abstract = "A complexometric method for the determination of mercury(II) in presence of other metal ions is described based on the selective masking action of 1-propane thiol towards mercury(II). Mercury(II) present in a given sample solution is first complexed with an excess of EDTA and the unreacted EDTA is titrated against lead nitrate solution at pH 5-6 (hexamine buffer) using xylenol orange as the indicator. A 0.8\% aqueous solution of 1-propane thiol is then added to displace EDTA from the Hg(II)-EDTA complex. The released EDTA is titrated with standard lead nitrate solution as before. Reproducible and accurate results are obtained for 4-85 mg of mercury(II), with relative error less than ±0.23\% and coefficient of variation not more than ±0.41\%. The effects of various ions were studied. The method is used for the analysis of mercury(II) in its synthetic alloy mixtures and also in complexes.",

author = "P. Parameshwara and J. Karthikeyan and Shetty, \{A. Nityananda\} and Prakash Shetty",

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TY - JOUR

T1 - Indirect complexometric determination of mercury(II) using 1-propane thiol (PT) as a selective masking agent

AU - Parameshwara, P.

AU - Karthikeyan, J.

AU - Shetty, A. Nityananda

AU - Shetty, Prakash

PY - 2005/11/1

Y1 - 2005/11/1

N2 - A complexometric method for the determination of mercury(II) in presence of other metal ions is described based on the selective masking action of 1-propane thiol towards mercury(II). Mercury(II) present in a given sample solution is first complexed with an excess of EDTA and the unreacted EDTA is titrated against lead nitrate solution at pH 5-6 (hexamine buffer) using xylenol orange as the indicator. A 0.8% aqueous solution of 1-propane thiol is then added to displace EDTA from the Hg(II)-EDTA complex. The released EDTA is titrated with standard lead nitrate solution as before. Reproducible and accurate results are obtained for 4-85 mg of mercury(II), with relative error less than ±0.23% and coefficient of variation not more than ±0.41%. The effects of various ions were studied. The method is used for the analysis of mercury(II) in its synthetic alloy mixtures and also in complexes.

AB - A complexometric method for the determination of mercury(II) in presence of other metal ions is described based on the selective masking action of 1-propane thiol towards mercury(II). Mercury(II) present in a given sample solution is first complexed with an excess of EDTA and the unreacted EDTA is titrated against lead nitrate solution at pH 5-6 (hexamine buffer) using xylenol orange as the indicator. A 0.8% aqueous solution of 1-propane thiol is then added to displace EDTA from the Hg(II)-EDTA complex. The released EDTA is titrated with standard lead nitrate solution as before. Reproducible and accurate results are obtained for 4-85 mg of mercury(II), with relative error less than ±0.23% and coefficient of variation not more than ±0.41%. The effects of various ions were studied. The method is used for the analysis of mercury(II) in its synthetic alloy mixtures and also in complexes.

UR - https://www.scopus.com/pages/publications/33745512280

UR - https://www.scopus.com/pages/publications/33745512280#tab=citedBy

M3 - Article

AN - SCOPUS:33745512280

SN - 0971-457X

VL - 12

SP - 727

EP - 729

JO - Indian Journal of Chemical Technology

JF - Indian Journal of Chemical Technology

IS - 6

ER -

Indirect complexometric determination of mercury(II) using 1-propane thiol (PT) as a selective masking agent

Abstract

All Science Journal Classification (ASJC) codes

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