Abstract

A series of 3-(N-arylamino)-5-amino-1Н-1,2,4-triazoles were prepared by the reaction of S,S-dimethyl cyanodithioimidocarbamate with appropriate anilines. The inhibiting effect of the products on the corrosion of copper of M1 grade in acidic and neutral chloride-containing media was studied using electrochemical and accelerated electroless methods. The maximal degree of protection ensured by commercially available 3,5-diamino-1H-1,2,4-triazole and the synthesized 3-phenylamino, 3-(4-methylphenylamino), 3-(4-chlorophenylamino), and 3-(3-chlorophenylamino) derivatives of 5-amino-1Н-1,2,4-triazole reaches 70–87%. In acid solutions, the synthesized compounds show higher performance than the 3,5-diamino derivative, ensuring up to 92–96% protection. Similar results were obtained in experiments in a salt fog chamber.

中文翻译：

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N-芳基氨基三唑在氯化物水溶液和空气中对铜腐蚀的抑制作用

摘要

一系列3-（Ñ -arylamino）1-5氨基Н -1,2,4-三唑经反应制得S，S与适当的苯胺-二甲基cyanodithioimidocarbamate。用电化学和加速化学方法研究了产物对酸性和中性氯化物介质中M1级铜腐蚀的抑制作用。通过商业上可获得的3,5-二氨基-1 H -1,2,4-三唑和合成的3-苯基氨基，3-（4-甲基苯基氨基），3-（4-氯苯基氨基）和3可以确保最大程度的保护。5-氨基-1Н-的-（3-氯苯基氨基）衍生物1,2,4-三唑达到70-87％。在酸性溶液中，合成的化合物显示出比3,5-二氨基衍生物更高的性​​能，可确保高达92–96％的保护率。在盐雾室中的实验中获得了相似的结果。