Measurements of the diffusion coefficients of atomic bromine in inert gases

✍ Scribed by M.-D. Hwang; T.-M. Su

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 382 KB
• Volume: 164
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(89)85224-8

✦ Synopsis

The laser-photolysis-recombination-luminescence detection method was employed to measure the diffusion coefficients of atomic bromine in inert gaseous media. The measured values are 0.191,O. 102,0.208,0.07 19,O. I96 and 0.122 cm2/s for Nz, CF,, 02, SFs, CO and CO*, respectively, at 1 atm and 300 K. The diffusion coefficient of Br-Brz was 0.0623 cm2/s which is close to the value reported previously. The diffusion coefficients of Br-inert gas systems were also calculated from the Lennard-Jones (6-12) parameters of eU (Br ) = 150 K and uw (Br ) = 3.6 16 8, determined previously from Br-rare gas systems. The similarity of the diffusion constants at 300 K between Br-inert gas and Kr-inert gas systems is discussed.