Rate constants for the reaction of OH radicals with CCS and CS, have been determined at 296 K using the flash photolysis resonance fh~orescen~ technique. The values derived from this study are kOH +mS = (5.66 \* 1.21) X lo-l4 cm3 mokcuk-' s-l a& \_+OH + CS2 = (1 .I35 2 0.34) X lOmu cm3 molecu!e-' s-
Flash photolysis resonance fluorescence investigation of the reaction of OH radicals with dimethyl sulfide
โ Scribed by Michael J. Kurylo
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 503 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Rate constants for the reaction of OH radicals in a homogeneous gas phase reaction with dhnethyl sulfide have been determined using the flash photolysis resonance fluorescence technique over the temperature range 273400 K. The data (combined with the results of another recent study) can be fit to the Arrhenius expression k = (6.08 Z? 2.54) X lo-'* exp[(134 2 135)/T] cm3 molecule-' s-' applicable from 273-426 K. The results are discussed in terms of reaction mecharusms and in Zight of recent sug@stions that diethyl sulfide plays an important role in the transport of natural sulfur to the earth's atmosphere.
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## Abstract The flash photolysis resonance fluorescence technique has been used to measure the rate constant for the reaction equation image over the temperature range of 250โ370 K. The present results are in excellent agreement with three very recent studies, and the combined data set can been u
The kinetics of the gas phase reaction of OH radicals with dimethyl sulfide (CH,SCH,) have been studied a t various temperatures and total pressures using two relative rate methods and a flash photolysis technique. For the relative rate methods, rate constants were measured at 296 L 2 K as a functio
The flash photolysis resonance fluorescencc technique has been used to measure the rrtte constant for the rcaction of O(3P) atoms with CION at 10 torr total pressure over the temperature range 225-273 K. The values obtained can be fit to the Arrhenius equation kr = (1.87 f 1.29) X 10-12 exp[ -(692 i
The rate constants of the gas phase reaction of OH radicals with dimethyl sulfide (CH3SCH3) over the temperature range 260-393 K have been studied using the discharge flow-resonance fluorescence technique. The rate constants were fitted by the Arrhenius equation k = (11.8 2 2.2) x exp[-(236 2 150)/T