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Citation: Xue Ke-Yi, Gao Qing-Yu, Liu Bing, Xu Liang-Qin. Dependence of the H₂O₂-Na₂S₂O₃ Reaction on pH and [H2O2]0/[Na2S2O3]0[J]. Acta Physico-Chimica Sinica, ;2004, 20(07): 772-775. doi: 10.3866/PKU.WHXB20040722 shu

Dependence of the H₂O₂-Na₂S₂O₃ Reaction on pH and [H2O2]0/[Na2S2O3]0

1.
College of Chemical Technology, China University of Mining and Technology, Xuzhou　221008

Received Date: 28 November 2003
Available Online: 15 July 2004

In the H2O2-Na2S2O3 reaction system both the pH value and [H2O2]0/[Na2S2O3]0 are important factors for stability of different intermediates. In this paper, the influences of the two factors on the composition and stability of the products were investigated. The results show that sulfur(0) is the main productat pH< 3, while tetrathionate is stable only in the pH range between 3 and 6. The concentration of sulfate will increase when pH and [H2O2]0/[Na2S2O3]0 are getting high. In neutral and week base solutions, the concentration of S(IV) species shows a peak value.
- Thiosulfate;Nonlinear reaction mechanism;Simulation
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Dependence of the H2O2-Na2S2O3 Reaction on pH and [H2O2]0/[Na2S2O3]0

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通讯作者: 陈斌, bchen63@163.com

Dependence of the H₂O₂-Na₂S₂O₃ Reaction on pH and [H2O2]0/[Na2S2O3]0