| 氯化亚铜氧化反应的化学动力学初探 |
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| 引用本文： | 范崇正,王昌燧,赵化章,王胜君.氯化亚铜氧化反应的化学动力学初探[J].物理化学学报,1992,8(5):685-689. |
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| 作者姓名： | 范崇正 王昌燧 赵化章 王胜君 |
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| 作者单位： | The University of Science and Technology of China, Hefei 230026 |
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| 基金项目： | 国家自然科学基金，中国科技大学结构分析开放实验室课题 |
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| 摘 要： | 多数被发掘的古代青铜文物表面都附着有某些钢锈,其中以粉状锈(Cu_2(OH)_3Cl)对铜器的腐蚀最为严重.迄今已有一些文献介绍粉状锈的生成机理,但对其反应过程的动力学研究尚未见报导。作为青铜合金中含量最丰的元素铜,被氧化腐蚀是分步进行的.本工作主要用X-光衍射及分光光度法对一价铜锈CuCl在潮湿环境中进行氧化反应的速度常数及表观活化能进行测定核算;对反应的中间产物及伴随现象进行分析探讨。
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| 关 键 词： | 青铜 腐蚀 活化能 |
| 收稿时间： | 1991-04-15 |
| 修稿时间： | 1991-11-27 |
A PRELIMINARY APPROACH TO THE CHEMICAL KINETICS OF CuCl OXIDIZATION |
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| Fan Chongzheng,Wang Changsui,Zhao Huazhang,Wang Shengjun The University of Science and Technology of China,Hefei.A PRELIMINARY APPROACH TO THE CHEMICAL KINETICS OF CuCl OXIDIZATION[J].Acta Physico-Chimica Sinica,1992,8(5):685-689. |
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| Authors: | Fan Chongzheng Wang Changsui Zhao Huazhang Wang Shengjun The University of Science and Technology of China Hefei |
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| Affiliation: | The University of Science and Technology of China, Hefei 230026 |
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| 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. |
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| Keywords: | Bronze Corrosion Activation energy |
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