AI Article Synopsis
- Limona ketone was synthesized to study how secondary organic aerosols (SOA) form from limonene when it reacts with ozone and to evaluate group-additivity methods for understanding the volatility of these products.
- The study found that the SOA produced from limona ketone is similar to that from alpha-pinene, but limonene generated a much higher intensity of SOA.
- The low vapor pressure of products from limonene ozonolysis suggests complete oxidation of its double bonds, with minimal contribution from ketone products derived from the exo double bond, which aids in developing a framework for predicting the volatility of organic compounds in the atmosphere.
Article Abstract
Limona ketone was synthesized to explore the secondary organic aerosol (SOA) formation mechanism from limonene ozonolysis and also to test group-additivity concepts describing the volatility distribution of ozonolysis products from similar precursors. Limona ketone SOA production is indistinguishable from alpha-pinene, confirming the expected similarity. However, limona ketone SOA production is significantly less intense than limonene SOA production. The very low vapor pressure of limonene ozonolysis products is consistent with full oxidation of both double bonds in limonene and furthermore with production of products other than ketones after oxidation of the exo double bond in limonene. Mass-balance constraints confirm that ketone products from exo double-bond ozonolysis have a minimal contribution to the ultimate product yield. These results serve as the foundation for an emerging framework to describe the effect on volatility of successive generations of organic compounds in the atmosphere.
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| http://dx.doi.org/10.1039/b701333g | DOI Listing |
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