Accession Number : AD0623095

Title :   THE RADIATION-INDUCED DECOMPOSITION OF MILLIMOLAR CONCENTRATIONS OF HYDROGEN PEROXIDE IN AERATED 'PURE WATER',

Corporate Author : NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF

Personal Author(s) : Balkwell,William R. ; Oldham,Susan B.

Report Date : 19 AUG 1965

Pagination or Media Count : 23

Abstract : The decomposition of hydrogen peroxide in aerated 'pure water' was studied as a function of dose and initial hydrogen peroxide concentration, (H2O2)0, in the 1 to 100 millimolar concentration region. Irradiations were performed with a 2000-curie Co60 source at a dose rate of 12.8 kilorads per minute. The decomposition of hydrogen peroxide was found to follow firstorder kinetics with respect to peroxide in the 1 to 100 millimolar concentration range. The specific peroxide decomposition rate constant was observed to decrease with an increase in initial peroxide concentration. The decomposition yield of hydrogen peroxide, G -(H2O2), at a given dose was found to increase significantly with increasing initial peroxide concentration and to be proportional to the square root of the initial peroxide concentration up to about 40 millimolar peroxide. The peroxide decomposition yield for a given initial peroxide concentration was observed to decrease continually during irradiation. The rate of decrease was found to be greater for higher initial concentrations of peroxide. (Author)

Descriptors :   (*HYDROGEN PEROXIDE, DECOMPOSITION), (*RADIATION CHEMISTRY, HYDROGEN PEROXIDE), WATER, IMPURITIES, REACTION KINETICS, DOSE RATE

Distribution Statement : APPROVED FOR PUBLIC RELEASE