CH24O

CH2O is the chemical formula for formaldehyde, also known as methanal. It is a simple organic compound and the simplest aldehyde. Formaldehyde is a colorless gas with a pungent, irritating odor. It is highly reactive and readily polymerizes. In aqueous solution, it exists in equilibrium with its hydrate, methylene glycol. Formaldehyde is soluble in water and many organic solvents.

Formaldehyde is an important industrial chemical and is produced on a large scale globally, primarily through the catalytic oxidation of methanol. Its main uses include the production of resins, such as urea-formaldehyde, phenol-formaldehyde, and melamine-formaldehyde, which are used in adhesives, particleboard, and insulation. It is also used in the production of other chemicals, including polyoxymethylene plastics, and as a disinfectant and preservative.

Exposure to formaldehyde can cause irritation to the eyes, nose, and throat. Higher concentrations can lead to respiratory problems and skin sensitization. It is classified as a known human carcinogen by several health organizations. Due to its reactivity and potential health effects, its handling and use are subject to regulations.