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.
英
美
- 空气中的甲醛与酚试剂反应生成嗪,嗪在酸性溶液中被高铁离子氧化形成兰绿色化合物。