Physical properties of the stratospheric aerosols
1973; American Geophysical Union; Volume: 78; Issue: 30 Linguagem: Inglês
10.1029/jc078i030p07051
ISSN2156-2202
Autores Tópico(s)Spacecraft and Cryogenic Technologies
ResumoJournal of Geophysical Research (1896-1977)Volume 78, Issue 30 p. 7051-7056 Physical properties of the stratospheric aerosols Owen B. Toon, Owen B. ToonSearch for more papers by this authorJames B. Pollack, James B. PollackSearch for more papers by this author Owen B. Toon, Owen B. ToonSearch for more papers by this authorJames B. Pollack, James B. PollackSearch for more papers by this author First published: 20 October 1973 https://doi.org/10.1029/JC078i030p07051Citations: 59AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract A comparison of the equilibrium vapor pressure over nitric acid solutions with observed water and nitric acid partial pressures in the stratosphere implies that nitric acid cannot be present as an aerosol particle in the lower stratosphere. A similar comparison for sulfuric acid solutions indicates that sulfuric acid aerosol particles are 75% H2SO4 by weight in water, in good agreement with direct observations. The freezing curve of H2SO4 solutions requires that the H2SO4 aerosol particles be solid or supercooled. The equilibrium vapor pressure of H2SO4 in the stratosphere is of the order of 2 × 10−11 mm Hg. At stratospheric temperatures, ammonium sulfate is in a ferroelectric phase. As a result, polar molecules may form a surface coating on these aerosols, which may be a fertile ground for further chemical reaction. References Andrews, F. C., Thermodynamics: Principles and Applications, 167– 171, Interscience, New York, 1971. Cadle, R. D., Composition of the stratospheric 'sulfate' layer, Eos Trans. AGU, 539, 812, 1972. Davies, C. N., Aerosol Science, 45– 47, Academic, New York, 1966. Dufour, L., andR. Defay, Thermodynamics of Clouds, translated by M. Smyth, and A. Beer, pp. 77,199,Academic,New York,1963. Giauque, W. F., E. W. Hornung, J. E. Kunzler, T. R. Rubin, The thermodynamic properties of aqueous sulfuric acid solutions and hydrates from 15 to 300°K, J. Amer. Chem. Soc., 82, 62, 1960. Hoshino, S., K. Vedam, Y. Okaya, R. Pepinsky, Dielectric and thermal study of (NH4)2SO4 and (NH4)2BeF4 transitions, Phys. Rev., 1122, 405, 1958. , International Critical Tables, 4, pp. 131,136, 302–305,] McGraw-Hill,New York,1928. Kiyoura, R., K. Urano, Mechanism, kinetics and equilibrium of thermal decomposition of ammonium sulfate, Ind. Eng. Chem. Process Des. Develop., 94, 489, 1970. Kuhn, P. M., M. S. Lojko, E. V. Petersen, Water vapor: Stratospheric injection by thunderstorms, Science, 174, 1319, 1971. Kunzler, J. E., W. F. Giauque, The heat capacity and entropy of sulfuric acid trihydrate glass and crystals from 15 to 300°K, J. Amer. Chem. Soc., 74, 797, 1952. Lazrus, A. L., B. Gandrud, R. D. Cadle, Nitric acid vapor in the stratosphere, J. Appl. Meteorol., 112, 389, 1972. Mastenbrook, H. J., The variability of water vapor in the stratosphere, J. Atmos. Sci., 28, 1495, 1971. Mossop, S. C., Stratospheric particles at 20 km altitude, Geochim. Cosmochim. Acta, 29, 201, 1965. Murcray, D. G., A. Goldman, F. H. Murcray, W. J. Williams, J. N. Brooks, D. B. Barker, Vertical distribution of minor atmospheric constituents as derived from air-borne measurements of atmospheric emission and absorption infrared spectra11th Aerospace Science MeetingAmer. Inst. of Aeronaut. and Astronaut.Washington, D.C., 1973. Pollack, J. B., E. Erickson, C. Chackerean Jr., F. Wittenborn, A. Summers, B. Baldwin, Aircraft observations of the near infrared spectrum of Venus: Implicatiqns for cloud compositionDivision of Planetary Sciences MeetingAmer. Astron. Soc.Tucson, Ariz., 1973. Remsberg, E. E., Discrepancies in stratospheric Aitken nuclei counts, J. Geophys. Res., 77, 6014, 1972. Rosen, J. M., The boiling point of stratospheric aerosols, J. Appl. Meteorol., 10, 1044, 1971. Rubin, T. R., W. F. Giauque, The heat capacities and entropies of sulfuric acid and its mono- and dihydrates from 15 to 300°K, J. Amer. Chem. Soc., 74, 800, 1952. Schutte, C. J. H., A. M. Heyns, Low temperature studies, 4, The phase transitions of ammonium sulfate and ammonium-d sulfate; the nature of hydrogen bonding and the reorientation of the NX4 + ions, J. Chem. Phys., 522, 864, 1970. Sissenwine, N., D. D. Grantham, H. A. Salmela, Mid-latitude humidity to 32 km, J. Atmos. Sci., 25, 1129, 1968. Strukov, B. A., S. D. Toshev, Phase boundaries and domain structure in ammonium sulfate crystals, Sov. Phys. Crystallogr., 93, 349, 1964. Timmermans, J., The Physico-Chemical Constants of Binary Systems in Concentrated Solutions, 4, pp. 550,620, 921,Interscience,New York,1960. Young, A. T., L. G. Young, Are the clouds of Venus sulfuric acid?, Icarus, 184, 564, 1973. Citing Literature Volume78, Issue30Oceans and Atmospheres20 October 1973Pages 7051-7056 ReferencesRelatedInformation
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