Business / Real Estate / Urea-Formaldehyde: First used in building materials, particularly insulation, in the 1970s. Gases leak out of the urea-formaldehyde foam insulation (UFFI) as it hardens and become trapped in the interior of a building. MORE
Business / Real Estate / Formaldehyde: A colorless, pungent, and irritating gas, used chiefly as a disinfectant and preservative and in synthesizing other compounds like resins. MORE
Science / Biology / Phosphoglyceraldehyde (PGAL): A substance formed from PGA during the dark reaction of photosynthesis. Some PGAL leaves the cycle and can be converted to glucose, while other PGAL molecules are used to reform ribulose biphosphate MORE
Lifestyle / Coffee / Herby: An aromatic sensation created by a highly volatile set of aldehydes and esters found in coffee's aroma. Produces either an sensation reminiscent of an onion or green vegetable. MORE