Keywords dipyridinium salts;corrosion inhibitor;inhibitive capacity;carbon steel A3;hydrochloric acid;additive for acidizing fluid;gemini surfactants;

• 单分子双吡啶盐;缓蚀剂;缓蚀性能;碳钢（A3）;盐酸液;酸液添加剂;孪连表面活性剂;