苯骈三氮唑(简称BTA)是铜及铜合金的特效缓蚀剂,对银等其它有色金属也有一定的防锈效果.BTA作为缓蚀剂而受到人们的注意是始于1950年,随着其使用范围的不断扩大产量逐年增加.以美国为例,1976年的生产量为2250～2700吨,目前已增加到6750～9000吨.其中绝大部分是作为缓蚀剂来使用的.本文主要对BTA及其衍生物的缓蚀效 Benzotriazole (BTA) is a special corrosion inhibitor of copper and copper alloy, and also has certain anti-rust effect on other non-ferrous metals such as silver.BTA has attracted much attention as a corrosion inhibitor since 1950, In the United States, for example, the production of 2250-2700 tons in 1976 has now increased to 6,750-9,000 tons, most of which are used as corrosion inhibitors. The main inhibition of BTA and its derivatives