Atmospheric aerosol particles have a large impact on the climate as they effect cloud formation, absorption/reflection of radiation, and precipitation. Effects of aerosol particles depend on several components such as the composition, morphology, physical state, etc. Investigating the relationships between particle compositions and conditions, such as, oxygen to carbon ratios, relative humidity, and liquid-liquid phase separation can improve knowledge on how these aerosol particles will exist in the atmosphere and how they will impact climate. In this study, a system composed of sucrose, ammonium sulfate and 2-methylglutaric acid will be tested with different oxygen to carbon ratios to inspect relative humidity and liquid-liquid phase separation. Also, systems comprised of adipic acid, ammonium sulfate, and 2-methylgultaric acid will be investigated with varying oxygen to carbon ratios.

Effects of aerosol particle chemical composition on phase transitions

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