formaalien

Formaldehyde is a chemical compound with the formula CH2O. It is the simplest aldehyde, consisting of a formyl group (-CHO) attached to a hydrogen atom. Formaldehyde is a colorless gas at room temperature and pressure, and it has a pungent, suffocating odor. It is highly soluble in water, forming a solution commonly known as formalin.

Formaldehyde is produced industrially by the catalytic oxidation of methanol. It is a widely used precursor in the production of various materials, including resins like urea-formaldehyde and phenol-formaldehyde. These resins are used in the manufacturing of particleboard, plywood, and molding compounds. Formaldehyde is also used as a disinfectant and preservative due to its biocidal properties. It is employed in embalming fluids and in the preservation of biological specimens.

Exposure to formaldehyde can occur through inhalation, skin contact, or ingestion. It is known to be an irritant to the eyes, nose, and throat. In some individuals, prolonged or high-level exposure can lead to respiratory problems and allergic reactions. The International Agency for Research on Cancer (IARC) classifies formaldehyde as a known human carcinogen. Regulatory agencies have established exposure limits for formaldehyde in occupational settings and in indoor air to minimize health risks.