Chem. J. Chinese Universities ›› 2000, Vol. 21 ›› Issue (3): 377.

• Articles • Previous Articles     Next Articles

Perturbation Effect of Ultra Trace Hydrogen Peroxide on the MnSO4-KBrO3-Diacetone Oscillating Chemical Reaction

ZHANG Ke, CAI Ru-Xiu, MA Wan-Hong, LIN Zhi-Xin, GAN Nan-Qin   

  1. Department of Chemistry, Wuhan University, Wuhan 430072, China
  • Received:1999-07-26 Online:2000-03-24 Published:2000-03-24

Abstract: The similarities between life processes that exhibit oscillatory behavior and chemical oscillating systems impel people to think that the biological and abiological phenomena conform to the same law. Oscillating chemical systems have been the focus of much research in the area of theoretical and experimental chemical dynamics as well as analytical sciences in recent years, but the studies on the perturbation species are kept around the concentration level of 10-7 mol/L. In our experiment, an amazed phenomenon was found. Ultra trace level (10-20 mol/L) of H2O2 can cause so magnitude influence on the macro system (MnSO4-KBrO3-diacetone oscillating chemical system) that the effect can be observed by a macroscopical method. When the concentration of H2O2 is above 10-13mol/L , the oscillation can even be stopped. Afurther study on the mechanism will doubtlessly help to understand the mystery of life, such as the sudden cardiopathy and the metabolism failure.

Key words: Oscillating chemical reaction, Hydrogen peroxide, CSTR(continuous-flow stirred tank reactor), Nonlinear kinetics

CLC Number: 

TrendMD: