THE LOSS OF CF2O ON ICE, NAT, AND SULFURIC-ACID-SOLUTIONS

We measured the first-order loss rate coefficients for CF2O on solid surfaces, ice and HNO3-treated ice, and on sulfuric acid solutions that coated the inside wall of a flow tube. We determined an upper limit for the uptake coefficient, gamma, of approximately 3x10(-6) for CF2O on ice and HNO3-treated ice. A value for gamma on a 60% (by weight) sulfuric acid solution of 3(+2/-3)x10(-6) was measured and we observed a higher value over 40% acid, gamma = 6x10(-5) (+/- 30%). The loss of CF2O on stratospheric particles is a very slow process and will be insignificant for events that occur on timescales of a year, such as the annual polar chlorine activation phenomena.