acetaldehiddé

Acetaldehiddé, also known as ethanal, is an organic compound with the chemical formula CH3CHO. It is a highly volatile, colorless liquid with a pungent, fruity odor. Acetaldehiddé is the second-largest organic chemical produced industrially, with most production dedicated to the manufacture of acetic acid. It is also a precursor to other chemicals, including pentaerythritol, peracetic acid, and 1,3-butanediol.

Acetaldehiddé occurs naturally in coffee, bread, and fruit. It is also produced in the human body as a byproduct of alcohol metabolism. Exposure to acetaldehiddé can occur through inhalation of cigarette smoke or exposure to industrial emissions. It is considered a probable human carcinogen by the International Agency for Research on Cancer.

In the environment, acetaldehiddé is a common air pollutant. It is formed from the incomplete combustion of organic matter and from the oxidation of hydrocarbons. It can also be released from vehicles and industrial processes. Acetaldehiddé is readily degraded in the atmosphere by photochemical reactions.

Acetaldehiddé is an important intermediate in organic synthesis. It can be used to produce a variety of products, including acetaldehyde diethyl acetal, ethylidene diacetate, and crotonaldehyde. It is also used as a solvent and as a flavoring agent in some food products.