||It has been suggested that this article be merged into Peroxyacyl nitrates. (Discuss) Proposed since August 2012.|
|This article needs additional citations for verification. (December 2010)|
|Systematic IUPAC name
ethanoic nitric peroxyanhydride
|Molar mass||121.05 g mol−1|
|1.46 × 10 5 mg l−1 at 298 K|
|Vapor pressure||29.2 mmHg at 298 K|
|0.000278 m³ atm mol−1 at 298 K|
Atmospheric OH rate constant
|10−13 cm³ molecule−1 s−1 at 298 K|
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
|what is: / ?)(|
Peroxyacetyl nitrate is a peroxyacyl nitrate. It is a secondary pollutant present in photochemical smog. It is thermally unstable and decomposes into peroxyethanoyl radicals and nitrogen dioxide gas. It is a lachrymatory substance.
Peroxyacetyl nitrate, or PAN, is an oxidant more stable than ozone. Hence, it is better capable of long-range transport than ozone. It serves as a carrier for oxides of nitrogen (NOx) into rural regions and causes ozone formation in the global troposphere.
The formation of PAN on a secondary scale becomes an issue when ethanol is used as an automotive fuel. Acetaldehyde emissions increase, which subsequently react in the atmosphere to form smog. Whereas ethanol policies solve domestic oil supply problems, they drastically exacerbate air quality conditions.
|This article about an ester is a stub. You can help Wikipedia by expanding it.|