Some analytical applications of aromatic sulfonyl haloamines: Determination of thiosemicarbazide alone and in its metal complexes with bromamine-B and dichloramine-B |
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| Authors: | Dandinasivara S. Mahadevappa K.S. Rangappa B.Thimme Gowda Netkal M.Made Gowda |
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| Affiliation: | Department of Post-graduate Studies and Research in Chemistry, University of Mysore, Manasagangotri, Mysore 570006, India;Division of Environmental Toxicology, Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, Texas 77550, USA |
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| Abstract: | Simple, rapid, and reproducible back titration methods for the determination of thiosemicarbazide (TSC) in free state and in Zn, Cd, Hg, Ni, Pt, and Pd metal complexes with bromamine-B (BAB) and dichloramine-B (DCB) have been developed. The oxidation reaction involves a 12-electron change per TSC molecule in 0.2–1.0 M NaOH and water-acetic acid media with BAB and DCB, respectively. The proposed analytical procedures for the assay of TSC are also useful for computing the number of TSC ligands present in the respective metal complexes. The two aromatic sulfonyl haloamines used, BAB and DCB, were prepared and then characterized by 13C FT-NMR spectral data. |
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| Keywords: | To whom correspondence should be addressed. |
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