Kinetics and mechanism of electron-transfer reactions of aquothallium and coordinated thallium(III).  XI.  Reduction of chlorothallium(III) complexes by phosphite

Gupta, K. C.; Gupta, Y. K.

doi:10.1021/ic50150a052

Cited by 9 publications

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References 9 publications

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“…Under these conditions, thallium(III) is known to exist as TlBr 2+ and is responsible for the fast reaction. Electron transfer occurs probably through the formation of the similar bridge-activated complex reported earlier [17,18]. It may be presumed that the transition state in…”

Section: Resultssupporting

confidence: 59%

Titrimetric and Spectrophotometric Methods for the Determination of Glyoxal and Analysis of Ternary Mixtures of Its Oxidation Products

Rao

2005

J Anal Chem

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Using thallium(III) as an oxidant, we developed titrimetric and spectrophotometric methods for the estimation of glyoxal at mmole and µ mole levels, respectively. In the titrimetric method, thallium(I) formed is determined oxidimetrically with potassium bromate. In the spectrophotometric method, the absorbance of thallium(III) at 260 nm in the presence of 0.1 mol/L sodium chloride and 1.0 mol/L perchloric acid is measured. A plausible mechanism for the oxidation of glyoxal is proposed. Based on the selective oxidation of the probable oxidation products of glyoxal (namely, glyoxylic acid, formic acid, and oxalic acid), a convenient titrimetric method is described for analyzing ternary mixtures of these products.

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Section: Resultssupporting

confidence: 59%

Titrimetric and Spectrophotometric Methods for the Determination of Glyoxal and Analysis of Ternary Mixtures of Its Oxidation Products

Rao

2005

J Anal Chem

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ChemInform Abstract: KINETICS AND MECHANISM OF ELECTRON‐TRANSFER REACTIONS OF AQUOTHALLIUM AND COORDINATED THALLIUM(III) PART 11, REDUCTION OF CHLOROTHALLIUM(III) COMPLEXES BY PHOSPHITE

Gupta¹,

Gupta²

1975

Chemischer Informationsdienst

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Kinetics and mechanism of oxidation of hydrazinium ion with peroxomonophosphoric acid in acid perchlorate solutions and role of trace iodide ions

Dhas

Mishra

Mittal

et al. 1991

Int J of Chemical Kinetics

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The reaction of peroxomonophosphoric acid and hydrazinium ion in acid perchlorate solutions occurs as per stoichiometry (i), and the rate law (ii) at large [NzH~'], -d[HaPOs]/dt = [H~PO~]T[H+] (ki + kz[NzHs+]/(K& + [H']))where K& is the first acid dissociation constant of H3P05 and kl and kz are rate constants found to be 2.6 x s-' and 5.0 x lo-' M-' s-', respectively, at 35". The reaction is greatly catalyzed by iodide ions. The mechanism involves a redox cycle 1-/12 and the rate is independent of [N2H5'] in the presence of iodide ions. K& was found to be 0.55 M-' and independent of temperature. Experimental MaterialsSolutions of PMPA were prepared each day whenever required by the hydrolysis of peroxodiphosphate in 0.5 M HC1O4 at 45" for about 1.5 h. It was standardized iodometrically. Solutions of lithium perchlorate were prepared by neutralizing 70% HC1O4 (E. Merck) with BDH AnalaR lithium carbonate

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Kinetics and mechanism of electron-transfer reactions of aquothallium and coordinated thallium(III). XI. Reduction of chlorothallium(III) complexes by phosphite

Cited by 9 publications

References 9 publications

Titrimetric and Spectrophotometric Methods for the Determination of Glyoxal and Analysis of Ternary Mixtures of Its Oxidation Products

Titrimetric and Spectrophotometric Methods for the Determination of Glyoxal and Analysis of Ternary Mixtures of Its Oxidation Products

ChemInform Abstract: KINETICS AND MECHANISM OF ELECTRON‐TRANSFER REACTIONS OF AQUOTHALLIUM AND COORDINATED THALLIUM(III) PART 11, REDUCTION OF CHLOROTHALLIUM(III) COMPLEXES BY PHOSPHITE

Kinetics and mechanism of oxidation of hydrazinium ion with peroxomonophosphoric acid in acid perchlorate solutions and role of trace iodide ions

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