黄铜在2%HF酸中的阴极行为

中国腐蚀与防护学报

1981, Vol. 1

Issue (2): 49-52

研究报告

本期目录 | 过刊浏览

黄铜在2%HF酸中的阴极行为

邹中坚

中国科学院应用化学研究所

Cathodic Behaviour of Brass in 2% HF Acid

Zou Zhongjian (Changchun Institute of Applied Chemistry;Chinese Academy of Sciences)

全文: PDF(319 KB)

摘要: 黄铜在2%HF 酸中出现了比较奇特的阴扳极化曲线一“Z”字形曲线。我们对此现象进行了一些探讨,发现它的形状与两价铜离子的浓度及氧的存在有关。只有在含氧的 HF 酸中,当溶液中两价铜离子浓度约在0.024ppmm至1ppmm 之间时,阴极极化曲线才呈现“Z”字形.这是因为在一定的电位区间内,氧的吸附阻滞了铜离子按原来的速度还原,使曲线出现了这种弯曲.

Abstract：An unusual cathodic behaviour-a zigzag cathodic polarization curve was observed on brass in HF acid.In this work,it is found that the shape of ca- thodic polarization curve of brass in HF acid is influenced by the concentra- tion of cupric ions and the existence of oxygen.The zigzag-form cathodic po- larization curve appears only in solutions containing about 0.024 ppm to 1 ppm cupric ion.It is considered that this unusual cathodic behaviour may be due to the adsorption of oxygen which inhibits the reduction of cupric ions.

收稿日期: 1981-04-25

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引用本文:

邹中坚. 黄铜在2%HF酸中的阴极行为[J]. 中国腐蚀与防护学报, 1981, 1(2): 49-52.
. Cathodic Behaviour of Brass in 2% HF Acid. J Chin Soc Corr Pro, 1981, 1(2): 49-52.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1981/V1/I2/49

[1] U.R.艾万斯;金属的腐蚀与氧化(中译本),第258页,269页.
[2] A.H.弗鲁姆金;电极过程动力学(中泽本),第215页。
[3] 托马晓夫;金属腐蚀及其保护的理论(中译本)第232页.
[4] M.H.Ghandehart;Corrosion Science.Vol.16,123-135(1976)

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