J. Hoigne et H. Bader, KINETICS OF REACTIONS OF CHLORINE DIOXIDE (OCLO) IN WATER .1. RATE CONSTANTS FOR INORGANIC AND ORGANIC-COMPOUNDS, Water research, 28(1), 1994, pp. 45-55
The kinetics of chlorine dioxide consumption by a wide range of inorga
nic and organic compounds, including a comprehensive series of phenols
, have been determined using conventional batch-type and stopped-flow
methods. In all cases, the rate law was first-order in chlorine dioxid
e and first-order in substrate. The methods allowed us to determine se
cond-order rate constants over a range from 10(-5) to 10(5) M-1 s-1. M
easured rate constants were high for nitrite, hydrogen peroxide, ozone
, iodide, iron (11), and, whenever the pH was not very low, for phenol
ic compounds, tertiary amines, and thiols. Bromide, ammonia, structure
s containing olefinic C=C double bonds, aromatic hydrocarbons, primary
and secondary amines, aldehydes, ketones and carbohydrates were unrea
ctive under conditions of water treatment. For substrates that are wea
k acids, such as phenols, or weak bases, the effect of pH on the react
ion rate showed that the rate constants for the deprotonated compounds
are much higher than those for the protonated species.