Acta Phys. -Chim. Sin. ›› 1996, Vol. 12 ›› Issue (01): 1-3.doi: 10.3866/PKU.WHXB19960101

• Communication •     Next Articles

Nonlinear Phenomena in Uncatalyzed Reaction of Some Sulfur Compounds with H2O2

Gao Qing-Yu,Wang Yue-Min,Zang Ya-Ru,Ma Ke-qin,Zhao Xue-Zhuang   

  1. Chemistry Department,Nankai University,Tianjin 300071
  • Received:1995-09-18 Revised:1995-11-01 Published:1996-01-15
  • Contact: Zhao Xue-Zhuang

Abstract:

In absence of catalysts, Oscillations in the oxidation of KSCN、Na2S2O3 and SC(NH2)2 by H2O2 are observed in CSTR experiments, single-peak and other phenomena are observed in batch experiments. Oscillations in pH and Pt potential are antiphase in H2O2-Na2S2O3-H+ system and H2O2-KSCN-OH- system, but oscillations in pH and Pt potential are synchronous in H2O2-SC(NH2)2-H+ system.

Key words: Batch Reactor, CSTR, Chemical oscillation, Nonlinearity, Sulfur compounds