Complexometric determination of palladium(II) using thioacetamide as a selective masking agent

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

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A simple, rapid and accurate complexometric method for the determination of palladium(II) is proposed, based on the selective masking property of thioacetamide towards palladium(II). In the presence of diverse metal ions, palladium(II) is complexed with excess of EDTA and the surplus EDTA is back titrated at pH 5-5.5(acetic acid-sodium acetate buffer) with standard lead nitrate solution using xylenol orange as indicator. An excess of a 0.5% aqueous solution of thioacetamide is then added to displace EDTA from Pd(II)-EDTA complex. The released EDTA is titrated with the same standard lead nitrate solution as before. Reproducible and accurate results are obtained in the concentration range 0.5mg-17.80mg of palladium with relative error of ±0.16% and coefficient of variation not exceeding 0.26%. The effect of diverse ions is studied. The method is used for the determination of palladium in its complexes, catalysts and synthetic alloy mixtures.

Original languageEnglish
Pages (from-to)125-129
Number of pages5
JournalAnnali di Chimica
Volume96
Issue number1-2
DOIs
Publication statusPublished - 01-01-2006

Fingerprint

Thioacetamide
Ethylenediaminetetraacetic acid
palladium
Palladium
EDTA
Edetic Acid
Nitrates
Lead
nitrate
Sodium Acetate
ion
Acetic acid
Acetic Acid
acetic acid
Metal ions
acetate
Buffers
aqueous solution
catalyst
Sodium

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Environmental Science(all)

Cite this

Parameshwara, P. ; Karthikeyan, J. ; Shetty, A. Nityananda ; Shetty, Prakash. / Complexometric determination of palladium(II) using thioacetamide as a selective masking agent. In: Annali di Chimica. 2006 ; Vol. 96, No. 1-2. pp. 125-129.
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Complexometric determination of palladium(II) using thioacetamide as a selective masking agent. / Parameshwara, P.; Karthikeyan, J.; Shetty, A. Nityananda; Shetty, Prakash.

In: Annali di Chimica, Vol. 96, No. 1-2, 01.01.2006, p. 125-129.

Research output: Contribution to journalArticle

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