Nanosecond pulse radiolysis of ammoniacal solutions of silver salts. [10-MeV electrons]

Journal Article · Fri Oct 01 04:00:00 EDT 1976 · Radiat. Res.; (United States)

DOI:https://doi.org/10.2307/3574531· OSTI ID:7330573

Farhataziz,; Cordier, P; Perkey, L M

In pulse radiolysis of silver salts in liquid ammonia at 23/sup 0/C, the reaction of e/sub am//sup -/ with Ag + produces Ag, and subsequently the reaction of Ag with Ag/sup +/ produces Ag/sub 2//sup +/ which probably disproportionates to Ag/sub 2/. The maxima in absorption spectra at 435, 390, and 300 nm are ascribed to Ag, Ag/sub 2//sup +/, and Ag/sub 2/, respectively. The measured specific rate of the reaction of e/sub am//sup -/ with Ag/sup +/ is 1.5 x 10/sup 12/ M/sup -1/ sec/sup -1/ at 23/sup 0/C. The calculated specific rate with the Smoluchowski--Debye equation for a diffusion-controlled reaction of e/sub am//sup -/ with Ag/sup +/ is 1.4 x 10/sup 12/ M/sup -1/ sec/sup -1/ at 25/sup 0/C. The specific rate for the reaction of Ag with Ag/sup +/ is 1.3 x 10/sup 10/ M/sup -1/ sec/sup -1/ at 23/sup 0/C. At the same temperature, the ratio of the specific rate for the disproportionation of Ag/sub 2//sup +/ and extinction coefficient of Ag/sub 2//sup +/ at the 390 nm is 10/sup 6/ cm sec/sup -1/. A comparison of the spectra of various silver species dissolved in water with the spectra for same species dissolved in liquid ammonia shows that spectra in liquid ammonia are shifted toward longer wavelengths.

• Research Organization: Univ. of Notre Dame, IN
• OSTI ID: 7330573
• Journal Information: Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 68:1; ISSN RAREA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ABSORPTION SPECTRA
AMMONIA
BEAMS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CHLORINE COMPOUNDS
DECOMPOSITION
ELECTRON BEAMS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HALOGEN COMPOUNDS
HYDRIDES
HYDROGEN COMPOUNDS
IRRADIATION
LEPTON BEAMS
LEPTONS
MEV RANGE
MEV RANGE 01-10
NITRATES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
PERCHLORATES
PULSED IRRADIATION
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOLYSIS
SILVER COMPOUNDS
SILVER NITRATES
SILVER PERCHLORATES
SILVER SULFATES
SOLVATED ELECTRONS
SPECTRA
SULFATES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS