CCN activation of adipic acid
نویسندگان
چکیده
CCN activation experiments with adipic acid: effect of particle phase and adipic acid coatings on soluble and insoluble particles S. S. Hings, W. C. Wrobel, E. S. Cross, D. R. Worsnop, P. Davidovits, and T. B. Onasch Department of Chemistry, Boston College, Chestnut Hill, MA 02467, USA Aerodyne Research Inc., Billerica, MA 01821, USA Received: 1 February 2008 – Accepted: 1 February 2008 – Published: 4 March 2008 Correspondence to: S. S. Hings ([email protected]) Published by Copernicus Publications on behalf of the European Geosciences Union.
منابع مشابه
CCN activation experiments with adipic acid: effect of particle phase and adipic acid coatings on soluble and insoluble particles
Slightly soluble atmospherically relevant organic compounds may influence particle CCN activity and therefore cloud formation. Adipic acid is a frequently employed surrogate for such slightly soluble organic materials. The 11 published experimental studies on the CCN activity of adipic acid particles are not consistent with each other nor do they, in most cases, agree with the Köhler theory. Th...
متن کاملCloud condensation nucleus (CCN) behavior of organic aerosol particles generated by atomization of water and methanol solutions
Cloud condensation nucleus (CCN) experiments were carried out for malonic acid, succinic acid, oxalacetic acid, DL-malic acid, glutaric acid, DL-glutamic acid monohydrate, and adipic acid, using both water and methanol as atomization solvents, at three operating supersaturations (0.11%, 0.21%, and 0.32%) in the Caltech three-column CCN 5 instrument (CCNC3). Predictions of CCN behavior for five ...
متن کاملThe role of temperature in cloud droplet activation.
Aerosols are prevalent in the atmosphere where they can serve as cloud condensation nuclei (CCN). Here we report on new CCN measurements to characterize the temperature dependence of CCN activity for single component organic aerosol and secondary organic aerosol from the reaction of α-pinene and O(3) generated in the laboratory. For compounds with a weak dependence of water activity on temperat...
متن کاملJoint effect of organic acids and inorganic salts on cloud droplet activation
We have investigated CCN properties of internally mixed particles composed of one organic acid (oxalic acid dihydrate, succinic acid, adipic acid, citric acid, cis-pinonic acid, or Nordic reference fulvic acid) and one inorganic salt (sodium chloride or ammonium sulphate). Surface tension and water activity of aqueous model solutions with concentrations relevant for CCN activation were measured...
متن کاملEffects of Shortening Replacement with Reinforced Ethyl Cellulose-Based Oleogels with Adipic Acid on Physicochemical and Sensory Characteristics of Cakes
Background and Objectives: In recent years, use of oleogels as replacers of structured oils has received much attentions due to the health concerns. The objective of the present study was preparation of reinforced ethyl cellulose-based oleogels with adipic acid as replacers of shortening in cakes. Materials & Methods: First, oleogel samples were prepared using ethyl cellulose (at two various ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008