In situ measurements of gas/particle-phase transitions for atmospheric semivolatile organic compounds was written by Williams, Brent J.;Goldstein, Allen H.;Kreisberg, Nathan M.;Hering, Susanne V.. And the article was included in Proceedings of the National Academy of Sciences of the United States of America in 2010.Related Products of 5444-75-7 The following contents are mentioned in the article:
An understanding of gas/particle partitioning of semi-volatile compounds is critical to determine atm. aerosol formation processes and growth rates, which in turn affect global climate and human health. The Study of Organic Aerosol at Riverside 2005 campaign was performed to better understand the factors responsible for aerosol formation and growth in Riverside, California, a region with high secondary organic aerosol concentrations formed by phase transfer of low-volatility reaction products from the precursor gas oxidation The ability of a thermal desorption aerosol gas chromatograph (TAG) to measure gas-to-particle phase transitioning for several organic compound classes (polar and non-polar) in the ambient Riverside atm. was assessed using in-situ observations of several hundred semi-volatile organic compounds TAG measurements were compared to modeled partitioning of select semi-volatile organic compounds Although TAG was not designed to quantify semi-volatile organic vapor phases, TAG measurements distinguished when specific compounds are dominantly in the vapor phase, are dominantly in the particle phase, or have both phases present. Since TAG data are speciated and time-resolved, this distinction is sufficient to determine the transition from vapor to particle phase as a function of C number and compound class. Laboratory studies typically measure semi-volatile organic compound phase partitioning using pure compounds or simple mixtures; hourly TAG phase partitioning measurements can be made in a complex mixture of thousands of polar/non-polar and organic/inorganic compounds in the atm. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Related Products of 5444-75-7).
2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Related Products of 5444-75-7
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics