Acta Phys. -Chim. Sin. ›› 1992, Vol. 8 ›› Issue (05): 685-689.doi: 10.3866/PKU.WHXB19920522

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A Preliminary Approach to the Chemical Kinetics of CuCl Oxidization

Fan Chong-Zheng; Wang Chang-Sui; Zhao Hua-Zhang; Wang Sheng-Jun   

  1. The University of Science and Technology of China, Hefei 230026
  • Received:1991-04-15 Revised:1991-11-27 Published:1992-10-15
  • Contact: Fan Chong-Zheng

Abstract: XRD and SPM techniques were used to identify the products and reaction rates for CuCl oxidization. The results showed tbe reaction between CuCl, O_2 and H_2O is rapid at ambient conditions. The bronze powder-corrosion with Cu(Ⅱ) formed through the corrosion with Cu(Ⅰ) such as (CuCl), as soon as the Cu_2(OH)_3Cl once formed, Cu(Ⅱ) ion occured in the mean while; the fresh corrosion products dispersed in solution as colloidal dispersions, and CuCl transformed into Cu_2(OH)_3Cl through Cu_2O.
The experimental phenomena were discussed. The reaction order, reaction rate, and apparent activation energy of these reaction were calculated.

Key words: Bronze, Corrosion, Activation energy