Concentration Effects in the Hydrogenation of 4-Nitro-2′-Hydroxy-5′-Methylazobenzene over Skeletal Nickel in an Aqueous 2-Propanol Solution
- Авторы: Anh H.1, Nemtseva M.1, Lefedova O.1
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Учреждения:
- Ivanovo State University of Chemical Technology
- Выпуск: Том 92, № 4 (2018)
- Страницы: 669-673
- Раздел: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/169956
- DOI: https://doi.org/10.1134/S0036024418040131
- ID: 169956
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Аннотация
The kinetics of hydrogenation of 4-nitro-2′-hydroxy-5′-methylazobenzene in aqueous 2-propanol solution over the skeletal nickel is investigated at different initial concentrations. It is established that the hydrogenation of 4-nitro-2′-hydroxy-5′-methylazobenzene over a skeletal nickel in azeotropic aqueous 2-propanol solution proceeds via two parallel pathways at both low and high initial concentrations. It is shown that increasing the initial concentration of the hydrogenated compound above its level of solubility raises the rate of azo group transformation in 4-nitro-2′-hydroxy-5′-methylazobenzene, while the content of 4-amino-2′- hydroxy-5′-methylazobenzene does not change in the hydrogenate and is not accumulated in the bulk of solution.
Об авторах
Hoang Anh
Ivanovo State University of Chemical Technology
Автор, ответственный за переписку.
Email: hoanganh402@mail.ru
Россия, Ivanovo, 153000
M. Nemtseva
Ivanovo State University of Chemical Technology
Email: hoanganh402@mail.ru
Россия, Ivanovo, 153000
O. Lefedova
Ivanovo State University of Chemical Technology
Email: hoanganh402@mail.ru
Россия, Ivanovo, 153000