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Citation: Gao Zhi-Di, Liu Jun-Li, Han De-Gang, Shen Shi-Gang, Wang An-Zhou. Studies on the Oscillation of m-C₆H₄(OH)₂-KBrO₃-H₂SO₄ System[J]. Acta Physico-Chimica Sinica, ;1993, 9(02): 218-223. doi: 10.3866/PKU.WHXB19930214 shu

Studies on the Oscillation of m-C₆H₄(OH)₂-KBrO₃-H₂SO₄ System

1.
Department of Chemistry, Peking University, Beijing 100871; Department of Chemistry, Hebei University, Baoding 071002

Received Date: 7 October 1991
Available Online: 15 April 1993

The oscillations of m-C_6H_4(OH)_2-KBrO_3-H_2SO_4 (system A) as well as m-C_6H_4(OH)_2-KBrO_3-H_2SO_4-MnSO_4(system B) have been studied. The relations between induction period as well as oscillating period and the initial concentrations of reactants as well as temperatures of the system have been determined experimentally.
With low concentrations of Mn~(2+), system B exhibits two types of oscillation phenomena, ie, after the first type of oscillation and through a certain time interval, a second type of oscillation occurs. The characteristics of the two types of oscillation are different. The oscillating behavior of the first type of oscillation is similar to that of system A. The second type of oscillation may exhibit period-double-monotonous phenomena, which supports the idea in reference[1]. With higher concentrations of Mn~(2+), the second type of oscillation disappears and the system exhibit only one oscillation. System B is one of the typical examples showing the two types of oscillations.
- Chemical oscillation; Induction period; Oscillting period; Period-double-monotonous phenomena; Bi-oscillation
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Studies on the Oscillation of m-C₆H₄(OH)₂-KBrO₃-H₂SO₄ System