formaldehyde and acetaldehyde aldol condensation

例句：

1. 1.This type of paint contains a high concentration of formaldehyde.
   这种油漆含有高浓度的甲醛。
2. 2.Formaldehyde is a toxic gas that can cause respiratory problems.
   甲醛是一种有毒气体，可能导致呼吸道问题。
3. 3. The laboratory used formaldehyde to preserve the samples.
   实验室使用甲醛来保存样本。
4. 1.Acetaldehyde is a colorless liquid that is used in the production of plastics.
   乙醛是一种无色液体，用于生产塑料。
5. 2.Acetaldehyde is also used as an antiseptic in wound care.
   乙醛也用作伤口护理的防腐剂。
6. 3.The reaction between acetaldehyde and water produces carbon dioxide and water.
   乙醛与水反应产生二氧化碳和水。