甲醛通常以水溶液形式出现，易溶于水和乙醇，35～40%的甲醛水溶液叫做福尔马林。甲醛是一种重要的有机原料，主要用于塑料工业（如制酚醛树脂、脲醛塑料）、合成纤维（如合成维尼纶、聚乙烯醇缩甲醛）、皮革工业、医药、染料等。
Formaldehyde is usually in the form of aqueous solution, which is easily soluble in water and ethanol. 35-40% of formaldehyde aqueous solution is called formalin. Formaldehyde is an important organic raw material, mainly used in plastic industry (such as phenolic resin, urea formaldehyde plastic), synthetic fiber (such as synthetic vinylon, polyvinyl formal), leather industry, medicine, dye and so on.
甲醛水溶液用来泡海型托辊 吸水树脂 天津水处理设备 邯郸断桥铝门窗 唐山防水 检查井模具 沟盖板模具产品是错的，因为甲醛水溶液甲醛会与海产品中蛋白质发生反应，破坏蛋白质的结构，使其变质，危害人体健康，但可用甲醛水溶液制作动物标本，使标本能长久保存。
It is wrong to use formaldehyde water solution to soak seafood, because formaldehyde water solution will react with the protein in seafood, destroy the structure of protein, make it degenerate and harm human health, but it can be used to make animal specimens with formaldehyde water solution, so that the specimens can be preserved for a long time.