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.

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dc.contributor.authorParameshwara, P.
dc.contributor.authorKarthikeyan, J.
dc.contributor.authorNityananda Shetty, A.N.
dc.contributor.authorShetty, P.
dc.date.accessioned2026-02-05T11:00:16Z
dc.date.issuedComplexometric determination of palladium(II) using thioacetamide as a selective masking agent
dc.description.abstract2006
dc.identifier.citationAnnali di Chimica, 2006, 96, 46054, pp. 125-129
dc.identifier.issn34592
dc.identifier.urihttps://doi.org/10.1002/adic.200690003
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/27896
dc.subjectalloy
dc.subjectdivalent cation
dc.subjectedetic acid
dc.subjectlead
dc.subjectlead nitrate
dc.subjectnitrate
dc.subjectpalladium
dc.subjectthioacetamide
dc.subjectxylene
dc.subjectxylenol orange
dc.subjectarticle
dc.subjectchemistry
dc.subjectmethodology
dc.subjectpH
dc.subjectreproducibility
dc.subjectsensitivity and specificity
dc.subjecttitrimetry
dc.subjectAlloys
dc.subjectCations, Divalent
dc.subjectEdetic Acid
dc.subjectHydrogen-Ion Concentration
dc.subjectLead
dc.subjectNitrates
dc.subjectPalladium
dc.subjectReproducibility of Results
dc.subjectSensitivity and Specificity
dc.subjectThioacetamide
dc.subjectTitrimetry
dc.subjectXylenes
dc.titleA 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.

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