formaldehydiin

Formaldehydiin is not a recognized chemical name in standard nomenclature and may be a misspelling of formaldehyde (systematic name methanal) or a fictional term used in a specific context. This article provides a concise overview of the established compound closest to the term, formaldehyde.

Formaldehyde (methanal) is the simplest member of the aldehyde family, with the formula CH2O. It is typically encountered as a colorless gas with a distinctive, pungent odor, or in solution as formalin (about 37% formaldehyde in water). It is highly soluble in water and readily participates in polymerization and reactions with nucleophiles.

Industrial production occurs mainly by the oxidation of methanol over catalytic surfaces, yielding formaldehyde gas that is subsequently used to manufacture resins such as urea-formaldehyde and phenol-formaldehyde resins, as well as textiles, plastics, and other chemicals. It is also used as a disinfectant, preservative, and as a fixative in histology and microscopy.

Safety: Formaldehyde is an irritant to the eyes, skin, and lungs. Prolonged or high-level exposure has been associated with cancer, and the International Agency for Research on Cancer (IARC) classifies it as a Group 1 carcinogen in humans. Handling requires adequate ventilation, protective equipment, and adherence to occupational exposure limits. Formaldehyde solutions can release vapors and should be stored in sealed containers away from heat.

See also: Formalin; methanal; aldehydes.