Shape and optical properties of aerosols formed by photolysis of acetylene, ethylene, and hydrogen cyanide

Journal Article · Wed Jul 20 00:00:00 EDT 1988 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JD093iD07p08383· OSTI ID:6926576

Bar-Nun, A; Kleinfeld, I; Ganor, E

The shapes and sizes of photochemically produced aerosol particles of polyacetylene, polyethylene, and polyhydrogen cyanide were studied experimentally. All of the single particles were found to be perfectly spherical and semiliquid. However, they aggregate readily, with a sticking coefficient near unity, to form nonspherical particles, which could give rise to the observed polarization from Titan's and Jupiter's upper haze layers. The absorbance of polyacetylene was remeasured and corrected, and it is now much closer to that of polyethylene. The measured real and imaginary indices of refraction of the two materials make them both suitable material for Titan's and Jupiter's upper haze layers. However, the larger abundance and higher rate of polymerization of acetylene would make it the dominant aerosol-forming material in both atmospheres. copyright American Geophysical Union 1988

• Research Organization: Department of Geophysics and Planetary Sciences, Tel Aviv University, Tel Aviv, Israel
• OSTI ID: 6926576
• Journal Information: J. Geophys. Res.; (United States), Vol. 93:D7
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AEROSOLS
OPTICAL PROPERTIES
HYDROCYANIC ACID
PHOTOLYSIS
POLYACETYLENES
POLYETHYLENES
PARTICLE SIZE
POLARIZATION
CHEMICAL REACTIONS
COLLOIDS
CYANIDES
DECOMPOSITION
DISPERSIONS
HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHOTOCHEMICAL REACTIONS
PHYSICAL PROPERTIES
POLYENES
POLYMERS
POLYOLEFINS
SIZE
SOLS
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)