ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
The absorption of Cl2 into aqueous bicarbonate and aqueous hydroxide solutions was studied both experimentally and theoretically. The rate coefficient of the reaction between Cl2 and OH- was estimated over the temperature range of 293-312 K and fitted by the Arrhenius equation: \documentclass{article}\pagestyle{empty}\begin{document}$$ k_{24} = 3.56*10^{11} \exp \left({\frac{{ - 1,617}}{T}} \right) $$\end{document}.If Cl2 were assumed to react only with water and OH- in an aqueous bicarbonate solution, the predicted absorption rate would be much lower than that experimentally measured. This suggests that Cl2 reacts with HCO3- in an aqueous bicarbonate solution. The rate coefficient of the reaction between Cl2 and HCO3- was estimated over the temperature range of 293-313 K and fitted by the Arrhenius equation: \documentclass{article}\pagestyle{empty}\begin{document}$$ k_{21} = 5.63*10^{10} \exp \left({\frac{{ - 4,925}}{T}} \right) $$\end{document}.More importantly, under absorption conditions, the amount of hydroxide consumed for absorbing a specific amount of Cl2 into an aqueous hydroxide solution is almost twice the amount of bicarbonate consumed for absorbing the same amount of Cl2 into an aqueous bicarbonate solution.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690420308
