Kinetics of oxidation of vanadium(III) by hydroxylamine in acid medium
01 Dec 1982-Reaction Kinetics and Catalysis Letters (Kluwer Academic Publishers)-Vol. 21, Iss: 4, pp 473-477
TL;DR: In this article, the authors investigated the kinetics of vanadium(III) by hydroxylamine at high acidities in the temperature range 25-30 °C and found that rates decreased with increasing acidity of the medium.
Abstract: The kinetics of oxidation of vanadium(III) by hydroxylamine have been investigated at high acidities in the temperature range 25–30 °C. Rates decreased with increasing acidity of the medium. Both NH2OH and NH3OH+ are capable of oxidizing V(III) in parallel reactions, the order being unity each in oxidant and reductant.
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02 Jan 1954
TL;DR: Experimental inorganic chemistry, Experimental Inorganic Chemistry (EIC), Experimental inorganic Chemistry, Experimental Chemistry (EC), this paper, Experimental Chemical Engineering (ECE), Experimental Chemical Evolution (ECE),
Abstract: Experimental inorganic chemistry , Experimental inorganic chemistry , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
212 citations
TL;DR: In this paper, the nitrogenisotope effects occurring during the alkaline reduction of NO3−, NO2−, and NH2OH with Fe(II) were studied.
Abstract: Studies were made of the nitrogen‐isotope effects occurring during the alkaline reduction of NO3−, NO2−, and NH2OH with Fe(II). The pertinent reduction reactions were shown to be irreversible and the yields of NH3 quantitative. The reduction of NO3− to NH3 produced a k14/k15 value of 1.075±0.004 at 25°C. A k14/k15 ratio of 1.034±0.002 at 25°C was obtained for the reduction of NO2−, or NH2OH to NH3. The rate constant, kNO3−, was shown to be slow compared to kNO2− and kNH2OH which had values of 4.09×10−2 and 9.53×10−3 sec−1, respectively.The experimental data agreed well with results computed for a two‐atom model in which the significant step in the reduction of each species was the breaking of an N–O bond. Reactions consistent with the experimental data were proposed to account for the reduction mechanism.
36 citations
TL;DR: In this paper, the kinetics of the reduction of hydroxylamine by Ti 3+ and Ti 3 + -EDTA have been investigated at different pH values, and it was shown that the reaction occurs by the attack of Ti(III) on unprotonated hydroxyamines.
22 citations
TL;DR: In this article, the authors investigated the kinetics of the reduction of hydrazine, hydroxylamine, hydrazoic acid, and the azide ion by chromium(II) in perchlorate media.
Abstract: The kinetics of the reduction of hydrazine, hydroxylamine, hydrazoic acid, and the azide ion by chromium(II) have been investigated in perchlorate media. In all cases the reaction is first order in [CrII] and first order in [substrate]. The rates are increased by the addition of halide and sulphate ions, and this is due to the competition of 1 : 1 chromium(II) complexes with Craq2+ for the substrate. Formation constants are determined for these complexes, and their heats and entropies of formation are compared with the analogous iron(II) complexes.
8 citations