Corrosion reactions, with metal dissolution, can occur in both basic and acidic solutions. 使金屬溶解的腐蝕反應,可以在鹼性也可以在酸性溶液中發生。
Formaldehyde in the air reacts with the phenol reagent triazine, triazine in the acidic solution of iron ions are oxidized to form a high blue green compound. 空氣中的甲醛與酚試劑反應生成嗪,嗪在酸性溶液中被高鐵離子氧化形成蘭綠色化合物。