A fused ring compound having hydroxy, carboxylic acid and hydroxyalkyl substituent groups and the metal salts or complexes thereof. The hydroxyalkyl group is especially a hydroxymethyl group. The compound is prepared by reaction of the hydroxy carboxylic acid derivative with formaldehyde in an alkaline medium at a temperature of not more than 50oC. The compounds, especially the metal salts or complexes thereof, can be used to provide corrosion inhibition of metals, for example iron.
一种具有羟基、羧基和羟烷基取代基的熔环化合物及其
金属盐或络合物。 羟烷基尤其是羟甲基。 化合物的制备方法是羟基
羧酸衍
生物与
甲醛在碱性介质中反应,反应温度不超过 50 摄氏度。 这些化合物,特别是其
金属盐或络合物,可用于抑制
金属(例如
铁)的腐蚀。