POST-INDUCTION KINETICS IN SHOCK INITIATED H$sub 2$-O$sub 2$ REACTIONS

Abstract

DISCLAIMERPortions of this document may be illegible in electronic image products. Images are produced from the best available original document. IntroductionIn an e a r l i e r one of us repofled obssrrations of the maxirnu.u.OH aonuentration developed at the end of t h e induction period i n the shock wave wmbuetfon of s t o i c h i m e t r i c an8 nearly s t o i c h i o w e t r i c hydrogenoxygen mfiotuma d i l u t e i n argon. A t temperatures between about 1000° and 260O0#, t h e m c o n c~t~a t f o n s ' e x c e e d their ultimate e q u i l f b r f m values by large faatorsS ernd t h i s "overshootM was accounted POP approximately by t h e notion that the aanditbons in t h e reaction mixture at t h e t i m e , of t h e OWcmcentratitm tm%fBfm 6 0 m~w n d d to a state of paaytfal equilibrium among the three independent maatPass of t h e branching chain mechanism, which was achieved promptly a t the and of the inductfon'porfod, before t h e reambfnatbon reactions had prapiasssd apgmciably. It was.suggested, Isoreover, that t h e p a r t f a l equilibrium values represented p r a c t i c a l upper limits to the martiarum e o n c e n t m t i~n s reached by O H a d the other reactionWe regam here a more thorough hvecstfgtstfon o f the course of t h e hydrogen -oxygen r e a c t i o n a t t h e end o f t h e indua. r CE-G-~-LN-O-T-I-CE----' -\ apparatus, method, or process disclosed in this report. used in tho above, "person a c m g an behalf of the C o~m i e s i a n " includes any employee o r contractor of the C6mmisslon, o r employee of such contractor, to e e extent that such employae or contractor nf lbe Commission, o r employee of such contractor prepares.dfsaeminates, o r provldes access to. any information pursualrl lo Ma employment o r contract with the Commlsslon, o r his employment "Ith such Contractor.