Formaldehyde is an aldehyde with the molecular formula of one carbon atom, two hydrogen atoms and one oxygen atom. Formol or formaldehyde in water is used widely in nail hardeners, disinfectants and nail varnish.
Wikipedia, the free encyclopedia Formaldehyde is a chemical compound with the formula H 2 CO. It is the simplest aldehyde. Formaldehyde exists in several forms aside from H 2 CO: the cyclic trimer trioxane and the polymer paraformaldehyde. It exists in water as the hydrate H 2 C(OH) 2.
Formaldehyde is an organic compound that exists naturally. It's chemical formula is CH2O. For more information, look at the OSHA (Occupational Safety and Health Administration) fact sheet.