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[Chemical Knowledge]：How to identify formaldehyde and acetaldehyde?

Read： 653 Time：19months ago Source：Transform the World with Simplicity

Formaldehyde and acetaldehyde are common chemicals in our lives, and they are also very harmful organic substances. They are difficult to avoid in our daily life, so it is very important to understand how to distinguish formaldehyde from acetaldehyde. Formaldehyde and acetaldehyde are different in structure, so in some specific occasions can be distinguished by some simple methods. Below we will introduce in detail how to identify formaldehyde and acetaldehyde.

we can identify formaldehyde and acetaldehyde by smell. The smell of formaldehyde is more pungent, while the smell of acetaldehyde is more mild. When we encounter a pungent smell, it is likely to be the presence of formaldehyde; and when we encounter a milder smell, it is most likely to be acetaldehyde. Therefore, in daily life, it is a very effective method to identify formaldehyde and acetaldehyde by odor.

we can identify formaldehyde and acetaldehyde by chemical properties. Formaldehyde and acetaldehyde are different in chemical properties, so they can be identified by some chemical reactions. For example, we can formaldehyde and acetaldehyde with ammonia, formaldehyde and ammonia will not react after contact, and acetaldehyde and ammonia will produce white flocculent precipitation after contact. Therefore, identification by chemical properties is also a common and effective method.

we can identify formaldehyde and acetaldehyde through the detection instrument. There are now many instruments on the market that are specifically used to detect formaldehyde and acetaldehyde, and the two can be accurately identified through scientific detection methods. This method is usually more accurate, but requires the use of professional equipment and operating techniques, and is generally not suitable for daily life.

To sum up, we can identify formaldehyde and acetaldehyde through odor, chemical properties and testing instruments. In daily life, we can choose the appropriate method according to the specific situation to identify, to avoid harm to our body. I hope that through the introduction of this article, we can have a clearer understanding of how to identify formaldehyde and acetaldehyde, so as to prevent problems before they occur.

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