Abstract
Deposition processes of plutonium (4) hydroxoformates in the system Pu(NO/sub 3/)/sub 4/-HNO/sub 3/-HCoOH-N6/sub 4/OH-H/sub 2/O have been studied in pH range 0.2-10.7 at total plutonium concentration in the system 100 g/l. It is shown that under the conditions plutonium (4) hydrolysis takes place with the formation of hydroxoformates. A local maximum of plutonium (4) hydroxoformate solubility in the range pH=3.8-4.8, which is evidently conditioned by the formation of soluble formate complex of plutonium in the region, is pointed out. The basic plutonium (4) formates of the composition PuOsub(x)(OH)sub(y)(COOH)sub(4-2x-y)xnHsub(2)O, where 1,3 >=x >= 0.7, 1.7 >= y >= 1.0 and n=1.5-7.0, are singled out, their thermal stability being studied. Density of the crystals and plutonium dioxide, formed during their thermal decomposition, is measured. It is established that for plutonium (4) hydroxoformates common regularities of the influence of salt composition (OH/sup -/-, CHOO/sup -/- and H/sub 2/O-group numbers in the molecule) on position of temperature decomposition effects and on the density of compounds, which have been previously found during the study of thorium and plutonium hydroxosalts are observed. It is shown that the density of plutonium dioxide decreases with the increase of hydration and hydrolysis degree of the initial plutonium hydroxoformate.
Citation Formats
Andryushin, V G, Belov, V A, Galaktionov, S V, Kozhevnikov, P B, Matyukha, V A, and Shmidt, V S.
Investigation of plutonium (4) hydroxoformates.
USSR: N. p.,
1982.
Web.
Andryushin, V G, Belov, V A, Galaktionov, S V, Kozhevnikov, P B, Matyukha, V A, & Shmidt, V S.
Investigation of plutonium (4) hydroxoformates.
USSR.
Andryushin, V G, Belov, V A, Galaktionov, S V, Kozhevnikov, P B, Matyukha, V A, and Shmidt, V S.
1982.
"Investigation of plutonium (4) hydroxoformates."
USSR.
@misc{etde_6346903,
title = {Investigation of plutonium (4) hydroxoformates}
author = {Andryushin, V G, Belov, V A, Galaktionov, S V, Kozhevnikov, P B, Matyukha, V A, and Shmidt, V S}
abstractNote = {Deposition processes of plutonium (4) hydroxoformates in the system Pu(NO/sub 3/)/sub 4/-HNO/sub 3/-HCoOH-N6/sub 4/OH-H/sub 2/O have been studied in pH range 0.2-10.7 at total plutonium concentration in the system 100 g/l. It is shown that under the conditions plutonium (4) hydrolysis takes place with the formation of hydroxoformates. A local maximum of plutonium (4) hydroxoformate solubility in the range pH=3.8-4.8, which is evidently conditioned by the formation of soluble formate complex of plutonium in the region, is pointed out. The basic plutonium (4) formates of the composition PuOsub(x)(OH)sub(y)(COOH)sub(4-2x-y)xnHsub(2)O, where 1,3 >=x >= 0.7, 1.7 >= y >= 1.0 and n=1.5-7.0, are singled out, their thermal stability being studied. Density of the crystals and plutonium dioxide, formed during their thermal decomposition, is measured. It is established that for plutonium (4) hydroxoformates common regularities of the influence of salt composition (OH/sup -/-, CHOO/sup -/- and H/sub 2/O-group numbers in the molecule) on position of temperature decomposition effects and on the density of compounds, which have been previously found during the study of thorium and plutonium hydroxosalts are observed. It is shown that the density of plutonium dioxide decreases with the increase of hydration and hydrolysis degree of the initial plutonium hydroxoformate.}
journal = []
volume = {24:2}
journal type = {AC}
place = {USSR}
year = {1982}
month = {Jan}
}
title = {Investigation of plutonium (4) hydroxoformates}
author = {Andryushin, V G, Belov, V A, Galaktionov, S V, Kozhevnikov, P B, Matyukha, V A, and Shmidt, V S}
abstractNote = {Deposition processes of plutonium (4) hydroxoformates in the system Pu(NO/sub 3/)/sub 4/-HNO/sub 3/-HCoOH-N6/sub 4/OH-H/sub 2/O have been studied in pH range 0.2-10.7 at total plutonium concentration in the system 100 g/l. It is shown that under the conditions plutonium (4) hydrolysis takes place with the formation of hydroxoformates. A local maximum of plutonium (4) hydroxoformate solubility in the range pH=3.8-4.8, which is evidently conditioned by the formation of soluble formate complex of plutonium in the region, is pointed out. The basic plutonium (4) formates of the composition PuOsub(x)(OH)sub(y)(COOH)sub(4-2x-y)xnHsub(2)O, where 1,3 >=x >= 0.7, 1.7 >= y >= 1.0 and n=1.5-7.0, are singled out, their thermal stability being studied. Density of the crystals and plutonium dioxide, formed during their thermal decomposition, is measured. It is established that for plutonium (4) hydroxoformates common regularities of the influence of salt composition (OH/sup -/-, CHOO/sup -/- and H/sub 2/O-group numbers in the molecule) on position of temperature decomposition effects and on the density of compounds, which have been previously found during the study of thorium and plutonium hydroxosalts are observed. It is shown that the density of plutonium dioxide decreases with the increase of hydration and hydrolysis degree of the initial plutonium hydroxoformate.}
journal = []
volume = {24:2}
journal type = {AC}
place = {USSR}
year = {1982}
month = {Jan}
}