IUPAC Name: Methanal

MCL: 1 ppm

Source: Used in the production of pesticides. It is a very important chemical in chemical synthesis, and is found in many household items. It is a very important industrial compound and is used in resins among other applications.

Summary: Formaldehyde is an organic compound used for its disinfecting and antiseptic properties. It is a very important chemical used as an intermediate to make other chemicals. It is also important in the manufacturing of pesticides, resins, pharmaceuticals, and is commonly found in many household items. It is soluble in water up to 400,000 mg/L at 20 C. It has an acid dissociation constant of pKa = 13.27 – 15.50 at 25 C. Formaldehyde is classified by the EPA as a Hazardous Air Pollutant (HAPs). It will exist as a gas in the atmosphere and be degraded with a half-life of 45 hours. It may also form naturally in the atmosphere when hydrocarbons are oxidized. A Koc value of 8 indicates high mobility within soil that may cause leaching to groundwater. Half-lives in surface water and groundwater have been estimated to at 1-7 and 2-14 days respectively. Biodegradation is expected to be a major fate process in water and soil.

GHS Hazard Statement: H220, H227, H228, H280, H301, H302, H311, H312, H314, H315, H317, H318, H319, H330, H331, H332, H335, H341, H350, H350i, H351, H370, H371, H372, H401, H412, GHS02, GHS04, GHS05, GHS06, GHS07, GHS08