| 焦性没食子酸稳定亚硫酸盐的制备及其防腐蚀性能 |
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| 引用本文： | 魏刚,熊蓉春.焦性没食子酸稳定亚硫酸盐的制备及其防腐蚀性能[J].环境工程,1999,17(3):65-68,78. |
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| 作者姓名： | 魏刚 熊蓉春 |
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| 作者单位： | 北京化工大学 |
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| 摘 要： | 通过除氧试验、腐蚀试验和电化学试验，研究了焦性没食子酸在亚硫酸盐防腐蚀中的作用。结果表明，焦性没食子酸使亚硫酸盐几乎失去除氧作用，但却提高了亚硫酸盐在含氧水中对２０ｇ钢的防腐蚀性能，使钢的自腐蚀电位更剧烈负移并使阴极极化增加。试验结果用公认的除氧机理无法解释，但为外加还原性气氛机理提供了有力证据，同时为增强亚硫酸盐的防腐蚀效果和解决其贮存失效问题提供了可行的方法
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| 关 键 词： | 亚硫酸盐 催化亚硫酸盐 稳定亚硫酸盐 焦性没食子酸 溶解氧腐蚀 |
PREPARATION AND ANTICORROSION OF SULFITE STABILIZED BY PYROGALLIC ACID |
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| Wei,Gang et al.PREPARATION AND ANTICORROSION OF SULFITE STABILIZED BY PYROGALLIC ACID[J].Environmental Engineering,1999,17(3):65-68,78. |
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| Authors: | Wei Gang |
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| Institution: | Wei
Gang et al |
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| Abstract: | The dependence of anticorrosion of sulfite on pyrogallic acid was
studied by oxygen removal tests,corrosion experiments and electrochemical testing.The
results show that the pyrogallic acid made sulfite lose oxygen removal capacity,but it increased
the function of sulfite,including anticorrosive effect,potential shift in a less noble direction and
cathodic polarization of steel in water containing oxygen.It is impossible to explain the test
results with the currently accepted oxygen removal mechanism.But the results provided
important evidences for the impressed reductive atmosphere mechanism of sulfite and an
effective method for preventing sulfite failure in stoage. |
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| Keywords: | sulfite catalyzed sulfite stabilized sulfite pyrogallic acid and dissoloved oxygen corrosion |
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