This compound also exists in equilibrium with various oligomers (short polymers), depending on the concentration and temperature. Methanediol, with the formula CH 2(OH) 2.It is a white solid that is insoluble in most solvents. Paraformaldehyde, with the formula HO(CH 2O) nH.It is a trimer of molecular formaldehyde. It is a white solid that dissolves without degradation in organic solvents. 1,3,5-Trioxane, with the formula (CH 2O) 3.It is stable at about 150 ☌, but polymerizes when condensed to a liquid. A colorless gas with a characteristic pungent, irritating odor. These compounds can often be used interchangeably and can be interconverted. It is mainly used in the production of industrial resins, e.g., for particle board and coatings.įormaldehyde is more complicated than many simple carbon compounds in that it adopts several diverse forms. In 2006, the global production rate of formaldehyde was estimated at 12 million tons per year. The common name of this substance comes from its similarity and relation to formic acid.įormaldehyde is an important precursor to many other materials and chemical compounds. It is the simplest of the aldehydes ( R−CHO) and one of the simplest of the carbohydrates. The pure compound is a pungent, colourless gas that polymerises spontaneously into paraformaldehyde (refer to section Forms below), hence it is stored as an aqueous solution ( formalin), which is also used to store animal specimens. Formaldehyde ( / f ɔːr ˈ m æ l d ɪ h aɪ d/ ( listen) for- MAL-di-hide, US also / f ə r-/ ( listen) fər-) ( systematic name methanal) is a naturally occurring organic compound with the formula CH 2O and structure H−CHO.
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