What question did this study set out to answer?

To determine the rate constant for the reaction between NO and superoxide and how it varies with pH.

January 1, 1993Free Radical Research Communications2,121 citations

The Reaction of no With Superoxide

Key Points

To determine the rate constant for the reaction between NO and superoxide and how it varies with pH.
Measured the rate constant from pH 5.6 to 12.5 by tracking the loss of superoxide and the formation of -OONO.
Analyzed the decay rate of -OONO in the presence of formate.
The rate constant for the reaction was found to be (6.7 +/- 0.9) x 10(9) l mol-1 s-1.
The decay rate of -OONO ranged from 1.2 s-1 at pH 5 to about 0.2 s-1 in strong base, likely due to formate catalysis.

Abstract

The rate constant for the reaction of NO with .O2- was determined to be (6.7 +/- 0.9) x 10(9) l mol-1 s-1, considerably higher than previously reported. Rate measurements were made from pH 5.6 to 12.5 both by monitoring the loss of .O2- and the formation of the product -OONO. The decay rate of -OONO, in the presence of 0.1 mol l-1 formate, ranges from 1.2 s-1 at pH 5 to about 0.2 s-1 in strong base, the latter value probably reflecting catalysis by formate.

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Cite This Study

Huie et al. (1993) studied this question.

synapsesocial.com/papers/6a0fef6f92676d5461fd4994 https://doi.org/10.3109/10715769309145868

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January 1, 1993Free Radical Research Communications2,121 citations

The Reaction of no With Superoxide

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RHRobert E. Huie SPS. Padmaja

Key Points

To determine the rate constant for the reaction between NO and superoxide and how it varies with pH.
Measured the rate constant from pH 5.6 to 12.5 by tracking the loss of superoxide and the formation of -OONO.
Analyzed the decay rate of -OONO in the presence of formate.
The rate constant for the reaction was found to be (6.7 +/- 0.9) x 10(9) l mol-1 s-1.
The decay rate of -OONO ranged from 1.2 s-1 at pH 5 to about 0.2 s-1 in strong base, likely due to formate catalysis.

Abstract

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Cite This Study

Huie et al. (1993) studied this question.

synapsesocial.com/papers/6a0fef6f92676d5461fd4994 https://doi.org/10.3109/10715769309145868

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