Accession Number:

AD0662736

Title:

PULSE RADIOLYSIS OF AQUEOUS SOLUTIONS,

Descriptive Note:

Corporate Author:

ARMY NUCLEAR DEFENSE LAB EDGEWOOD ARSENAL MD

Report Date:

1967-11-01

Pagination or Media Count:

50.0

Abstract:

X-ray induced aqueous chemical species were examined for reaction characteristics and homogeneous dispersion. A 3 krad, 50 ns, X-ray pulse from an electron accelerator produced the hydrated electron, e-aq, in solutions of Na2CO3, BaOH2, H2SO4, and HClO4. Kinetic spectroscopy with nanosecond range resolving time measured the optical absorption of e-aq but showed no evidence of any nonhomogeneous dispersion of e-aq. This indicates that any spur lifetime of e-aq is less than 1 ns. The hydrated electron has a rapid, apparent second-order decay in air-free alkaline solutions during the first half microsecond after the X-ray pulse. It is proposed this decay may be due to the reaction of e-aq with either H2O or excited water, H2O. The data are such that neither possible species can be dismissed as less plausible than the other. Author

Subject Categories:

  • Radiation and Nuclear Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE