State-transition in the Chemical Birhymicity of CuSO4-H2O2-KSCN-NaOH Reaction System by Modulating Flowrate

Abstract

Abstract: Two types of birhymicity(Ⅰ, Ⅱ) of CuSO₄-H₂O₂-KSCN-NaOHreaction system are found to be in continuous flow stirred tank reactor(CSTR). The transitions between two oscillatory states in the birhymicity Ⅱ region of the present chemical reaction have been induced by the application of a sinusoidal flowrate signal. One-way transition, i.e., from one oscillation to another oscillation(OSS1→OSS2 or OSS2→OSS1), only occurs in the two critical regions of birhymicity Ⅱ. The switching between OSS1 and OSS2 can be observed at k_f⁰=4.0 mL/min in OSS1 and k_f⁰=3.0 mL/min in OSS2 by certain periodical modulation.

Key words: Oscillation, CSTR, Birhymicity, Sinusoidal perturbation, Transition

CLC Number:

O643.1

TrendMD:

WEI Qing-Li, CHEN Lan, WU Qi-Lin, CAI Zun-Sheng, ZHAO Xue-Zhuang  . State-transition in the Chemical Birhymicity of CuSO₄-H₂O₂-KSCN-NaOH Reaction System by Modulating Flowrate[J]. Chem. J. Chinese Universities, 2000, 21(9): 1432.

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State-transition in the Chemical Birhymicity of CuSO₄-H₂O₂-KSCN-NaOH Reaction System by Modulating Flowrate

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