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FTIR studies of the kinetics and mechanism for the reaction of Cl atom with formaldehyde

✍ Scribed by H. Niki; P.D. Maker; L.P. Breitenbach; C.M. Savage

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 368 KB
Volume: 57
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(78)85328-7

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✦ Synopsis

Product studies were made with the FlIR method in the photolysis of miwxes containing Cl2 and CH20 up to 1 torr each in i atm M-The formation of two principal products, HQ and HCCPO, can be accounted for by the chain photochlorination of CEEzO, ie_. CL2 +hv -2Q,CItCH70~CHOi-Ha,CHO-Q, -+ HCCIO f CL The rate constant for the Q-CHzO reaction was determined from relative decay rates of CHzO and C2H6 in the photolysis of Q2 -CH20-C2H6 mixtmx The v&e of k&i * CHzO/Cl * C2 He) = 1.3 combined with the Iiterahrre value of k(C3 + c2 H6) = 6 X 10-l ' cm3 moIecule-' 5-l gwes k(Cl + CHzO) = 7.8 _< lo-" cm3 molecule-' s-l at 298 2 2 K.

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