Kinetics studies of oxidation of niacinamide by alkaline potassium permanganate
Orbital: The Electronic Journal of Chemistry
Endereço:
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Campo Grande / MS
79074-460
Site: http://www.orbital.ufms.br
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ISSN: 19846428
Editor Chefe: Adilson Beatriz
Início Publicação: 28/02/2009
Periodicidade: Trimestral
Área de Estudo: Química
Kinetics studies of oxidation of niacinamide by alkaline potassium permanganate
Ano: 2012 | Volume: 4 | Número: 1
Autores: Sandipsingh Gour, Sayyed Hussain, Mazahar Farooqui
Autor Correspondente: Mazahar Farooqui | [email protected]
Autor Correspondente: Mazahar Farooqui | [email protected]
Palavras-chave: kinetic study, mechanistic proposals, niacinamide, permanganetic oxidation
Resumos Cadastrados
Resumo Inglês:
The oxidation of niacinamide in alkaline media is carried out using potassium permanganate as an oxidizing agent. The reaction was monitored using UVVisible spectrophotometer at 525 nm. It was found to be zero order with respect to oxidant, fractional order with respect to hydrogen ion concentration and first order with respect to substrate. The thermodynamic parameters were determined. The average (ΔG#) was found to be 87.60 KJ/mol. The values ΔS# was found to be -0.2132 KJ/mole and energy of activation was found to be 23.95 KJ/mole. A suitable mechanism is proposed based on the experimental conditions.
