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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article" dtd-version="3.0" xml:lang="en">
<front>
<journal-meta>
<journal-id journal-id-type="publisher">ACP</journal-id>
<journal-title-group>
<journal-title>Atmospheric Chemistry and Physics</journal-title>
<abbrev-journal-title abbrev-type="publisher">ACP</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">1680-7324</issn>
<publisher><publisher-name>Copernicus GmbH</publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/acp-11-3227-2011</article-id>
<title-group>
<article-title>Atmospheric degradation of 3-methylfuran: kinetic and products study</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Tapia</surname>
<given-names>A.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Villanueva</surname>
<given-names>F.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Salgado</surname>
<given-names>M. S.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Cabañas</surname>
<given-names>B.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Martínez</surname>
<given-names>E.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Martín</surname>
<given-names>P.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Instituto de Tecnologías Química y Medioambiental  (ITQUIMA), Laboratorio de Contaminación Atmosférica, Universidad de Castilla La Mancha, Avda Camilo José Cela s/n, 13071, Ciudad Real, Spain</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Parque Científico y Tecnológico de Albacete, Paseo de la  Innovación 1, 02006 Albacete, Spain</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Departamento de Química Física, Facultad de Ciencias  Químicas, Universidad de Castilla La Mancha, Avda Camilo José Cela  s/n, 13071 Ciudad Real, Spain</addr-line>
</aff>
<pub-date pub-type="epub">
<day>05</day>
<month>04</month>
<year>2011</year>
</pub-date>
<volume>11</volume>
<issue>7</issue>
<fpage>3227</fpage>
<lpage>3241</lpage>
<permissions>
<license xlink:type="simple">
<license-p>This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
</license>
</permissions>
<self-uri xlink:href="http://www.atmos-chem-phys.net/11/3227/2011/acp-11-3227-2011.html">This article is available from http://www.atmos-chem-phys.net/11/3227/2011/acp-11-3227-2011.html</self-uri>
<self-uri xlink:href="http://www.atmos-chem-phys.net/11/3227/2011/acp-11-3227-2011.pdf">The full text article is available as a PDF file from http://www.atmos-chem-phys.net/11/3227/2011/acp-11-3227-2011.pdf</self-uri>
<abstract>
<p>A study of the kinetics and products obtained from the reactions of
3-methylfuran with the main atmospheric oxidants has been performed. The
rate coefficients for the gas-phase reaction of 3-methylfuran with OH and
NO&lt;sub&gt;3&lt;/sub&gt; radicals have been determined at room temperature and atmospheric
pressure (air and N&lt;sub&gt;2&lt;/sub&gt; as bath gases), using a relative method with
different experimental techniques. The rate coefficients obtained for these
reactions were (in units cm&lt;sup&gt;3&lt;/sup&gt; molecule&lt;sup&gt;−1&lt;/sup&gt; s&lt;sup&gt;−1&lt;/sup&gt;)  &lt;i&gt;k&lt;/i&gt;&lt;sub&gt;OH&lt;/sub&gt; = (1.13
&amp;plusmn;  0.22) &amp;times;  10&lt;sup&gt;−10&lt;/sup&gt; and &lt;i&gt;k&lt;/i&gt;&lt;sub&gt;NO&lt;sub&gt;3&lt;/sub&gt;&lt;/sub&gt; = (1.26 &amp;plusmn; 0.18)  &amp;times;
 10&lt;sup&gt;−11&lt;/sup&gt;. Products from the reaction of 3-methylfuran with OH, NO&lt;sub&gt;3&lt;/sub&gt;
and Cl atoms in the absence and in the presence of NO have also been
determined. The main reaction products obtained were chlorinated
methylfuranones and hydroxy-methylfuranones in the reaction of 3-methylfuran
with Cl atoms, 2-methylbutenedial, 3-methyl-2,5-furanodione and
hydroxy-methylfuranones in the reaction of 3-methylfuran with OH and
NO&lt;sub&gt;3&lt;/sub&gt; radicals and also nitrated compounds in the reaction with NO&lt;sub&gt;3&lt;/sub&gt;
radicals. The results indicate that, in all cases, the main reaction path is
the addition to the double bond of the aromatic ring followed by ring opening in
the case of OH and NO&lt;sub&gt;3&lt;/sub&gt; radicals. The formation of 3-furaldehyde and
hydroxy-methylfuranones (in the reactions of 3-methylfuran with Cl atoms and
NO&lt;sub&gt;3&lt;/sub&gt; radicals) confirmed the H-atom abstraction from the methyl group
and from the aromatic ring, respectively. This study represents the first
product determination for Cl atoms and NO&lt;sub&gt;3&lt;/sub&gt; radicals in reactions with
3-methylfuran. The reaction mechanisms and atmospheric implications of the
reactions under consideration are also discussed.</p>
</abstract>
<counts><page-count count="15"/></counts>
</article-meta>
</front>
<body/>
<back>
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