Huie R E, Padmaja S
Chemical Kinetics and Thermodynamics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899.
Free Radic Res Commun. 1993;18(4):195-9. doi: 10.3109/10715769309145868.
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.
一氧化氮（NO）与超氧阴离子（.O2-）反应的速率常数经测定为(6.7 +/- 0.9) x 10(9)升·摩尔-1·秒-1，远高于先前报道的值。通过监测超氧阴离子的损耗和产物过氧亚硝酸根（-OONO）的形成，在pH值5.6至12.5范围内进行了速率测量。在0.1摩尔·升-1甲酸盐存在的情况下，过氧亚硝酸根的衰变率在pH值为5时为1.2秒-1，在强碱中约为0.2秒-1，后者的值可能反映了甲酸盐的催化作用。
