Abstract
The atmospheric reactivity of dimethyl sulfate (DMS) with a series of atmospheric species has been investigated. Upper limits to the rate constants for the homogeneous gas-phase reactions of DMS with O3, NH3, and H2O have been determined by using FTIR spectroscopy and are -21, -21, and -23 cm3 molecule-1 S-1, respectively. The reactivity of DMS toward OH radicals and Cl atoms has been determined by using relative rate techniques, and the rate constants for those reactions are -13 and (4.2 ± 0.5) X 10-13 cm3 molecule-1 S-1, respectively. These rate constants correspond to atmospheric lifetimes ranging from >23 days with respect to reaction with OH radicals to >33 years with respect to reaction with ozone. With the possible exception of its reaction with water, for which the calculated lifetime of DMS is >2 days, these results indicate that the atmospheric fate of DMS is not determined by its homogeneous gas-phase reactions with any of the atmospheric species studied.
| Original language | English |
|---|---|
| Pages (from-to) | 313-315 |
| Number of pages | 3 |
| Journal | Environmental Science and Technology |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Mar 1990 |
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ASJC Scopus subject areas
- Environmental Engineering
- Environmental Science(all)
- Environmental Chemistry
- Earth and Planetary Sciences(all)
Cite this
Atmospheric reactivity of gaseous dimethyl sulfate. / Japar, S. M.; Wallington, T. J.; Andino, Jean M.; Ball, J. C.
In: Environmental Science and Technology, Vol. 24, No. 3, 03.1990, p. 313-315.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Atmospheric reactivity of gaseous dimethyl sulfate
AU - Japar, S. M.
AU - Wallington, T. J.
AU - Andino, Jean M.
AU - Ball, J. C.
PY - 1990/3
Y1 - 1990/3
N2 - The atmospheric reactivity of dimethyl sulfate (DMS) with a series of atmospheric species has been investigated. Upper limits to the rate constants for the homogeneous gas-phase reactions of DMS with O3, NH3, and H2O have been determined by using FTIR spectroscopy and are -21, -21, and -23 cm3 molecule-1 S-1, respectively. The reactivity of DMS toward OH radicals and Cl atoms has been determined by using relative rate techniques, and the rate constants for those reactions are -13 and (4.2 ± 0.5) X 10-13 cm3 molecule-1 S-1, respectively. These rate constants correspond to atmospheric lifetimes ranging from >23 days with respect to reaction with OH radicals to >33 years with respect to reaction with ozone. With the possible exception of its reaction with water, for which the calculated lifetime of DMS is >2 days, these results indicate that the atmospheric fate of DMS is not determined by its homogeneous gas-phase reactions with any of the atmospheric species studied.
AB - The atmospheric reactivity of dimethyl sulfate (DMS) with a series of atmospheric species has been investigated. Upper limits to the rate constants for the homogeneous gas-phase reactions of DMS with O3, NH3, and H2O have been determined by using FTIR spectroscopy and are -21, -21, and -23 cm3 molecule-1 S-1, respectively. The reactivity of DMS toward OH radicals and Cl atoms has been determined by using relative rate techniques, and the rate constants for those reactions are -13 and (4.2 ± 0.5) X 10-13 cm3 molecule-1 S-1, respectively. These rate constants correspond to atmospheric lifetimes ranging from >23 days with respect to reaction with OH radicals to >33 years with respect to reaction with ozone. With the possible exception of its reaction with water, for which the calculated lifetime of DMS is >2 days, these results indicate that the atmospheric fate of DMS is not determined by its homogeneous gas-phase reactions with any of the atmospheric species studied.
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U2 - 10.1021/es00073a004
DO - 10.1021/es00073a004
M3 - Article
VL - 24
SP - 313
EP - 315
JO - Environmental Science & Technology
JF - Environmental Science & Technology
SN - 0013-936X
IS - 3
ER -