ISSN:
0538-8066
Schlagwort(e):
Chemistry
;
Physical Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The relative rate technique has been used to measure rate constants for the reaction of chlorine atoms with nitro methane, nitro ethane, nitro propane, nitro butane, nitro pentane, ethyl nitrate, isopropyl nitrate, n-propyl nitrate, 2-pentyl nitrate, and 2-heptyl nitrate. Decay rates of these organic species were measured relative to one or more of the following reference compounds; n-butane, ethane, chloroethane, and methane. Using rate constants of 2.25 × 10-10 5.7 × 10-11, 8.04 × 10-12, and 1.0 × 10-13 cm3 molecule-1 s-1 for the reaction of Cl atoms with n-butane, ethane, chloroethane, and methane, respectively, the following rate constants were derived, in units of cm3 molecule-1 s-1: nitro methane, 〈7 × 10-15; nitro ethane, (2.05 ± 0.14) × 10-13; nitro propane, (1.13 ± 0.05) × 10-11; nitro butane, (5.13 ± 0.68) × 10-11; nitro pentane, (1.40 ± 0.14) × 10-10; ethyl nitrate, (3.70 ± 0.24) × 10-12; n-propyl nitrate, (2.15 ± 0.13) × 10-11; i-propyl nitrate, (3.94 ± 0.48) × 10-12; 2-pentyl nitrate, (1.00 ± 0.06) × 10-10; and 2-heptyl nitrate, (2.84 ± 0.50) × 10-10. Quoted errors represent 2σ and do not include possible systematic errors due to errors in the reference rate constants. Experiments were performed at 295 ± 2 K and atmospheric pressure (≃740 torr) of synthetic air. The results are discussed with respect to the previous literature data and to the modeling of these compounds in the atmosphere.
Zusätzliches Material:
1 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/kin.550220702
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