前言缓蚀剂(Corrosion Inhibitor)系指在金属的腐蚀介质中,加入少量即可使其腐蚀减低的物质。缓蚀剂的类型及分类方法有若干种,本文为叙述方便,将其分为无机系缓蚀剂及有机系缓蚀剂两类。无机缓蚀剂的特征是能使金属表面氧化,并使金属的腐蚀电位向高电位方向移动,即具有使金属钝化的作用。与此相反,有机缓蚀剂对腐蚀电位几乎无何影响,主要是以分子状态在金属表 Preface Corrosion Inhibitor is a substance that reduces the corrosion of a metal by adding a small amount of corrosion inhibitor. There are several types of corrosion inhibitors and their classification methods. This article is convenient for description, which is divided into inorganic corrosion inhibitors and organic corrosion inhibitors. Inorganic corrosion inhibitor is characterized by oxidation of the metal surface, and the corrosion potential of the metal in the high potential direction, which has the role of passivation of the metal. In contrast, organic corrosion inhibitor almost no effect on the corrosion potential, mainly in the molecular state in the metal form