Cooperative Institute for Research in Environmental Sciences

Analytical Chemistry Seminar: Jay Kroll

Analytical Chemistry Seminar: Jay Kroll

Photon and Water Mediated Sulfur Chemistry in Planetary Atmospheres

Jay Kroll - 3rd Year Graduate Student, Department of Chemistry and Biochemistry

Sulfur compounds have been observed in the atmospheres of a number of planetary bodies in our solar system including Earth and Venus. The global cloud cover on Venus located at an altitude between 50 and 80 kilometers is composed primarily of sulfuric acid (H2SO4) and water. Planetary photochemical models have attempted to explain observations of sulfuric acid and sulfur oxides with significant discrepancies remaining between models and observation. I will report on recent laboratory studies attempting to measure the kinetics of reactions of SO2 and water to form sulfurous acid and progress made in instrument development.

Jointly sponsored by the Department of Chemistry and Biochemistry, CIRES, and the Environmental Program