The rate of the addition reaction H + O-2 --> HO2, is measured at high O-2
concentrations (up to 40 bar of O-2 at room temperature) through its compet
ition with rapid spin exchange, to give k(ch)(0) = 8.7 +/- 0.8 x 10(-3)3 cm
(6)s(-1) ch (C) 2000 Published by Elsevier Science B.V. All rights reserved
.