...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Revue de Metallurgie >Corrosion inhibition of steel in hydrochloric acid solutions by malonitrile compounds
【24h】

Corrosion inhibition of steel in hydrochloric acid solutions by malonitrile compounds

机译：丙二醛化合物对盐酸溶液中钢的腐蚀抑制作用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

p-methoxy benzylidene malonitrile (MN1) and p-hydroxy benzylidene malonitrile (MN2) were synthesized and tested as inhibitors for the corrosion of mild steel in molar HCI. We have found that both of them inhibit the corrosion. The maximum inhibition efficiency reached 100 % for MN1 at 10~(-4) M and for MN2 at 10~(-3) M. Current-voltage curves indicated that malonitriles act as mixed type inhibitors. Their adsorption on the steel surface obeys the Langmuir isotherm model. The effect of temperature on the corrosion behaviour of steel indicated that the inhibition efficiency of the two inhibitors decreases slightly with the rise of temperature in the range 298-338 K. The apparent activation energies for steel dissolution are greater than in the absence of inhibitors, which is consistent with a chimisorption mechanism.
机译：合成了对甲氧基亚苄基丙二烯（MN1）和对羟基苄基丙二烯（MN2），并测试了它们在缓蚀剂中对缓蚀钢的缓蚀剂的性能。我们发现它们都可以抑制腐蚀。 MN1在10〜（-4）M时最大抑制效率达到100％，MN2在10〜（-3）M时最大抑制效率。电流-电压曲线表明丙二腈是混合型抑制剂。它们在钢表面的吸附遵循Langmuir等温模型。温度对钢腐蚀行为的影响表明，两种抑制剂的抑制效率随温度在298-338 K范围内的升高而略有下降。钢溶解的表观活化能大于不存在抑制剂时的表观活化能。这与化学吸附机理一致。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号