Heterogeneous-reaction-rate studies of SO/sub 2/, NO/sub 2/, and HNO/sub 3/ with aqueous droplets. Final report

Technical Report · Fri Oct 31 23:00:00 EST 1986

OSTI ID:6503766

Gardner, J A; Sharfman, L R; Adewuyi, Y; Davidovits, P

Heterogeneous-reaction pathways involving water droplets in clouds and fogs are important mechanisms for chemical transformations of atmospheric trace gases. One of the basic parameters that determines the transfer rate of trace gases into droplets is the mass accommodation or sticking coefficient for trace gas molecules on aqueous-droplet surfaces. A laboratory method has been developed for directly determining sticking coefficients and was applied to SO/sub 2/, NO/sub 2/, HNO/sub 3/, and H/sub 2/O/sub 2/. The method combines a monodisperse droplet stream generated at a vibrating orifice with a low-pressure flow reactor.

• Research Organization: Aerodyne Research, Inc., Billerica, MA (USA)
• OSTI ID: 6503766
• Report Number(s): PB-87-180568/XAB; ARI-RR-531
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADHESION
CHALCOGENIDES
DROPLETS
FOG
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
INORGANIC ACIDS
KINETICS
NITRIC ACID
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PEROXIDES
PHYSICAL PROPERTIES
REACTION KINETICS
SOLUBILITY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMODYNAMIC PROPERTIES
TRANSFORMATIONS
WATER