Interaction of acetone, hydroxyacetone, acetaldehyde and benzaldehyde with the surface of water ice and HNO3·3H2O ice

Oxygenated volatile organic compounds (OVOCs) influence the oxidative properties of the atmosphere, and their transport from the ground may occur by scavenging by the HNO(3)-rich supercooled water droplets found in polluted convective air masses. With infrared spectroscopy, we have studied the inter...

Full description

Saved in:
Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2012-01, Vol.14 (2), p.697-704
Main Authors: LASNE, Jérôme, LAFFON, Carine, PARENT, Philippe
Format: Article
Language:English
Subjects:
Acetaldehyde - chemistry
Acetone - analogs & derivatives
Acetone - chemistry
Benzaldehydes - chemistry
Chemistry
Exact sciences and technology
General and physical chemistry
Ice
Nitric Acid - chemistry
Surface Properties
Thermodynamics
Water - chemistry
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Oxygenated volatile organic compounds (OVOCs) influence the oxidative properties of the atmosphere, and their transport from the ground may occur by scavenging by the HNO(3)-rich supercooled water droplets found in polluted convective air masses. With infrared spectroscopy, we have studied the interactions of four typical atmospheric OVOCs (acetone, hydroxyacetone, acetaldehyde and benzaldehyde) with model surfaces of water ice and of trihydrated nitric acid (NAT) ice. We show that these molecules weakly adsorb on water ice and NAT by hydrogen bonding. No chemical reaction occurs between the molecules and the NAT substrate, the OVOCs remaining intact when in contact with hydrated HNO(3) in atmospheric ice clouds.
ISSN:1463-9076
1463-9084
DOI:10.1039/c1cp21707k