✦ LIBER ✦

EPR kinetic study of the reactions of F and Br atoms with H2CO

✍ Scribed by G. Le Bras; R. Foon; J. Combourieu

Publisher: Elsevier Science
Year: 1980
Tongue: English
Weight: 437 KB
Volume: 73
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(80)80388-5

No coin nor oath required. For personal study only.

✦ Synopsis

The absolute rate constants of the reactions F + H2CO + HF + HCO (1) and Br + HzCO + HBr f HCO (21 have been measured usmg the discharge flow reactor-EPR method Under pseudo-frrstarder conditions ( I H2CO I > I F I or I BF I), the foelowmg values were obtamed at 298 K: ICI = (6 6 f 1 1) X lo-*' and &a = (16 +-0.3) X 10-t*. Units are cm3 molecuIeDr sBp-The stratosphenc Implication of these data is discussed and the value obtained for k nukes reaction (2) a passiile sink for Br atoms in the stratosphere.

📜 SIMILAR VOLUMES

EPR kinetic study of the reactions of CF

EPR kinetic study of the reactions of CF3Br with H atoms and OH radicals

✍ G. Le Bras; J. Combourieu 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 452 KB 👁 2 views

Reactions of CFSBr with H atoms and OH radicals have been studied a t room temperature a t 1-2 torr pressures in a discharge flow reactor coupled to an EPR spectrometer. The rate constant of the reaction H + CF3Br -CF3 + HBr (1) was found to be k l = (3.27 f 0.34) X cm:'/moleesec was determined for

Kinetic study of the reactions of CL and

Kinetic study of the reactions of CL and BR with H2O2

✍ Shawn P. Heneghan; Sidney W. Benson 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 English ⚖ 393 KB 👁 1 views

The reactions of C1 and Br atoms with HzOz have been studied in the range of 300-350 K using the very-low-pressure-reactor technique. It was found that metathesis to produce HX and H02 is the only significant process (199%). For the reaction of Br 2 Br + HzO2 + HBr + HOz k z (300 K) = 1.3 f 0.45 X a

A study of the kinetics of the reaction

A study of the kinetics of the reaction between H2 and F2 by EPR methods

✍ Sherman W Rabideau; Harry G Hecht; W.Burton Lewis 📂 Article 📅 1972 🏛 Elsevier Science ⚖ 809 KB

Kinetic study of the reactions of Br2 wi

Kinetic study of the reactions of Br2 with OH and OD

✍ Y. Bedjanian; G. Le Bras; G. Poulet 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 173 KB 👁 2 views

The kinetics of the reactions OH ϩ Br 2 : HOBr ϩ Br (1) and OD ϩ Br 2 : DOBr ϩ Br (3) have been studied in the temperature range 230-360 K and at total pressure of 1 Torr of helium using the discharge-flow mass spectrometric method. The following Arrhenius expressions were obtained either from the k

Kinetics of the reactions of Cl atoms wi

Kinetics of the reactions of Cl atoms with CH3Br and CH2Br2

✍ Tomasz Gierczak; Leah Goldfarb; Donna Sueper; A. R. Ravishankara 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 660 KB

## Abstract The rate coefficients for the reactions of Cl atoms with CH~3~Br, (__k__~1~) and CH~2~Br~2~, (__k__~2~) were measured as functions of temperature by generating Cl atoms via 308 nm laser photolysis of Cl~2~ and measuring their temporal profiles via resonance fluorescence detection. The m

Kinetic study of the reactions Br + IBr→

Kinetic study of the reactions Br + IBr→I + Br2 and I + Br2→Br + IBr

✍ Y. Bedjanian; G. le Bras; G. Poulet 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 174 KB 👁 2 views

The kinetics of the title reactions have been studied using the discharge-flow mass spectrometic method at 296 K and 1 torr of helium. The rate constant obtained for the forward reaction (1), using three different experimental approaches (kinetics of Br Br ϩ IBr : I ϩ Br 2 consumption in excess of