Kinetics of tetraamminecopper(II)-catalysed oxidation of sulphur(IV) by peroxodisulphate in ammonia buffer |
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| Authors: | Gupta Krishna S. Bhargava Pinky Manoj Sreedharan V. |
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| Affiliation: | (1) Atmospheric Chemistry Laboratory, Department of Chemistry, University of Rajasthan, Jaipur, 302004, India |
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| Abstract: | The kinetics of tetraamminecopper(II)-catalysed oxidation of SO2–3 to SO2–4 in ammonia buffers and in a nitrogen atmosphere obeys the rate law: –d[SIV]/dt = k2[CuII][SO32–][NH3]–1. There is spectrophotometric evidence for the formation of the intermediate complex [Cu(NH3)3(SO3)] in a pre-equilibrium. |
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