A STUDY OF THE MECHANISM BY WHICH A PRELIMINARY IRRADIATION AFFECTS THE THERMAL DECOMPOSITION OF SILVER OXALATE CONTAINING A CADMIUM IMPURITY

Journal Article · Sun Jul 01 04:00:00 EDT 1962 · Doklady Akad. Nauk S.S.S.R.

OSTI ID:4795745

Zakharov, Yu A; Boldyrev, V V; Lykhin, V M; Votinova, L A; Savel'ev, G G; Breger, A Kh

>Preparations of pure silver oxalate, and of oxalate containing 0.1, 0.5, 1, 5, 7.5, and 10 mole% cadmium were prepared by precipitation. Cadmium oxalate could be detected as a separate phase by x-ray analyses, when added in andounts exceeding 1.0 mole%. The rate of photolysis on irradiation with ultraviolet light, and the rate of radiolysis were determined by measuring the pressure of evolved gas in a high-vacuum unit. The addition of cadmium signiflcantly slows down the rate of photolysis of silver oxalate, and to a lesser degree, it also slows down the radiolysis of silver oxalate by x rays. A study of the thermal decomposition of irradiated and unirradiated samples shows that the addition of cadmium, and preliminary irradiation have an effect only on the initial induction period of the decomposition. The addition of cadmium increases the induction period, and a preliminary irradiation shortens the period. The rate of thermal decomposition at temperatures of 132, 136, and 140 deg C was determined on samples containing varying amounts of cadmium which were preliminarily given doses of Co/sup 60/ gamma rays of 9.9 x 10/sup 5/, 1.0 x 10/ sup 7/, and 9.4 x 10/sup 7/ roentgens per gram. (TTT)

• Research Organization: Kirov Polytechnical Inst., Tomsk, USSR; and Karpov Inst. of Physical Chemistry, USSR
• NSA Number: NSA-16-030463
• OSTI ID: 4795745
• Journal Information: Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 145
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

CADMIUM COMPOUNDS
CHEMISTRY
COBALT 60
DECOMPOSITION
GAMMA SOURCES
GASES
IMPURITIES
MEASURED VALUES
OXALATES
PHOTOLYSIS
PRECIPITATION
PREPARATION
PRESSURE
RADIATION CHEMISTRY
RADIATION DOSES
RADIOLYSIS
REACTION KINETICS
SILVER COMPOUNDS
TEMPERATURE
ULTRAVIOLET RADIATION
VACUUM
X RADIATION