引用本文:
Yong Qing Zhang, Xiao Zhe Du, Wei Lin Huang. Temperature effect on the kinetics of persulfate oxidation of p-chloroaniline[J]. Chinese Chemical Letters,
2011, 22(3): 358-361.
doi:
10.1016/j.cclet.2010.10.015
Citation: Yong Qing Zhang, Xiao Zhe Du, Wei Lin Huang. Temperature effect on the kinetics of persulfate oxidation of p-chloroaniline[J]. Chinese Chemical Letters, 2011, 22(3): 358-361. doi: 10.1016/j.cclet.2010.10.015
Citation: Yong Qing Zhang, Xiao Zhe Du, Wei Lin Huang. Temperature effect on the kinetics of persulfate oxidation of p-chloroaniline[J]. Chinese Chemical Letters, 2011, 22(3): 358-361. doi: 10.1016/j.cclet.2010.10.015
Temperature effect on the kinetics of persulfate oxidation of p-chloroaniline
摘要:
The kinetics of heat-facilitated persulfate oxidation of p-chloroaniline (PCA) in aqueous solutions was measured at five different temperature conditions and at four different oxidant concentrations. The PCA degradation was found to follow a pseudo-first-order decay model when the persulfate was excessive. The pseudo-first-order rate constants of PCA degradation by persulfate (50 mmol/L) at pH 7.0 are 0.12×10-4, 0.28×10-4,0.43×10-4, 0.83×10-4, 1.32×10-4 s-1 at 10, 20, 30, 40 and 50℃, respectively. Under the above reaction conditions, the reaction has activation energy of 49.97 kJ/mol. The observed rate was found to be function of temperature and oxidant concentration. Raising temperature and increasing persulfate concentration can significantly accelerate the PCA degradation.
English
Temperature effect on the kinetics of persulfate oxidation of p-chloroaniline
Abstract:
The kinetics of heat-facilitated persulfate oxidation of p-chloroaniline (PCA) in aqueous solutions was measured at five different temperature conditions and at four different oxidant concentrations. The PCA degradation was found to follow a pseudo-first-order decay model when the persulfate was excessive. The pseudo-first-order rate constants of PCA degradation by persulfate (50 mmol/L) at pH 7.0 are 0.12×10-4, 0.28×10-4,0.43×10-4, 0.83×10-4, 1.32×10-4 s-1 at 10, 20, 30, 40 and 50℃, respectively. Under the above reaction conditions, the reaction has activation energy of 49.97 kJ/mol. The observed rate was found to be function of temperature and oxidant concentration. Raising temperature and increasing persulfate concentration can significantly accelerate the PCA degradation.
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Key words:
- Persulfate
- / p-Chloroaniline
- / Kinetics
- / In situ chemical oxidation
- / Temperature
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