Formaldehyde (from Latin formīca "ant") is a colorless gas with a pungent odor, readily soluble in water, alcohols and polar solvents. Irritant, toxic.
Application An aqueous solution of formaldehyde (methanediol) stabilized with methanol - formalin - causes denaturation of proteins, therefore it is used as a tanning agent in tanning and gelatin tanning in the production of film ... Due to the strong tanning effect, formaldehyde is also a strong antiseptic, this property of formalin is used in medicine, as an antiseptic (formidron, Formagel and similar drugs) and for the preservation of biological materials (creating anatomical and other drugs).
Aqueous formaldehyde solution (methanediol), stabilized with urea - UFC - is one of the most important sources of formaldehyde and urea in the production of urea-formaldehyde, melamine-urea-formaldehyde resins and for the treatment of urea against caking; used in the woodworking and furniture industries for the production of plywood, chipboard, etc.
The main part of formaldehyde is used for the manufacture of thermosetting polymers (phenol-formaldehyde, urea-formaldehyde and melamine-formaldehyde resins), it is also widely used in industrial organic synthesis ( pentaerythritol, trimethylolpropane, etc.).
During storage (at temperatures below 9 C), the formaldehyde solution becomes cloudy, a white precipitate (paraformaldehyde) precipitates.
|Type||Colourless gas with a strong smell|