Inhibiting Effect of Different Carboxylic Acid on Uncatalysed and Co2O3 Catalysed Autoxidation of SO2 in Alkaline Medium- Brief Comparison by Prasad DSN* in Annals of Chemical Science Research_ chemical sciences journal
Abstract
The
study of air pollution has been the interest area to the scientific community,
since the end of the World War II. The earliest perceived problems were those
related to the incomplete combustion of coal, soot and ash abounded in the
major industrial cities of the world [1-5]. The oxidation of sulfur dioxide has been one of
the most frequently studied reactions in aqueous atmospheric droplets. Three
reaction pathways are considered to be dominantly responsible for oxidation of
SO2 in atmospheric water droplets. These are the oxidation of dissolved SO2 by
H2O2, O3 and O2 in the presence of transition metal ions as catalysts [6-10].
Recent studies show that the sulfur (IV) oxidation in atmospheric water
droplets can be affected by other reactions. Organic compounds may dissolve
into water droplets and react with sulfoxy radicals and transition metal ions,
and thus alter the rate of catalytic S(IV) oxidation [11-15]. In most of the
studies the role of organics has been reported in the metal ion catalysed
autoxidation of sulfur (IV) in aqueous medium [16-17]. Very few studies are
available on the role of organics on the metal oxide catalysed autoxidation of
sulfur (IV) in aqueous medium. This led us to investigate the kinetics of
sulfur (IV) autoxidation catalyzed by Co2O3 in the pH range 7.8-9.4. and the
effect of various carboxylic
acids have been studied in alkaline media to delineate the nature of the
mechanism
https://crimsonpublishers.com/acsr/fulltext/ACSR.000528.php
Crimson
Publishers: https://crimsonpublishers.com/
For
more articles in chemical sciences
journal,
Please
click on below link: https://crimsonpublishers.com/acsr/
No comments:
Post a Comment