KINETIC-STUDIES OF CL ATOM REACTIONS WITH SERIES OF ALKANES USING THEPULSED-LASER PHOTOLYSIS RESONANCE FLUORESCENCE METHOD

The rate coefficients for the reactions of Cl atoms with CH4 (k(1)), C 2H6 (k(2)), C3H8 (k(3)), and n-C4H10 (k(4)), have been determined usin g a newly built pulsed laser photolysis-resonance fluorescence (PLP-RF ) apparatus. The reactions were studied at room temperature (297 +/- 2 ) K and P = 60 Torr of helium. The rate constants k(2), k(3) and k(4) were measured in the presence of oxygen. The obtained values are: k(1) = (1.07 +/- 0.03)x10(-13); k(2) = (6.5 +/- 0.3)x10(-11); k(3) (1.31 /- 0.03)x10(-10); k(4) = (2.25 +/- 0.06)x10(-10) (in cm(3) molecule(-1 ) s(-1)). These results are compared to the literature data and provid e a validation of the newly built PLP-RF apparatus in our laboratory.