在２ｍｏｌ／Ｌ磷酸中，用失重法和电化学极化法测定了新三唑衍生物对钢腐蚀状况的抑制作用。浸入１ｈ后进行阴极和阳极极化测定，失重测定进一步证实了有电化学势向。两种方法表明：溶解率与化学性质和产物浓度有关。２，５－双（氯甲基）－３－苄基－１，３，４－三唑（ＴＡ? In 2mol / L phosphoric acid, the inhibition of the new triazole derivatives on the corrosion of steel was determined by weight loss method and electrochemical polarization method. The cathodic and anodic polarization measurements were performed after 1 h immersion, and the weight loss determination further confirmed the electrochemical potential. The two methods show that the dissolution rate is related to the chemical nature and product concentration. 2,5-bis (chloromethyl) -3-benzyl-1,3,4-triazole (TA?