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The Effect of the Ammonium Group on the Different Annealing Processes; Role du Groupe Ammonium dans les Differents Processus de Recuit; 042d 0424 0424 0415 041a 0422 0410 041c 041c 041e 041d 0418 0415 0412 041e 0419 0413 0420 0423 041f 041f 042b 041d 0410 0420 0410 0417 041b 0418 0427 041d 042b 0415 041f 0420 041e 0426 0415 0421 0421 042b 041e 0422 0416 0418 0413 0410 ; Efecto del Grupo Amonio en Diferentes Procesos de Recocido

Conference:

Abstract

The ammonium group can play an essential role in the different annealing processes of neutron-irradiated ammonium compounds. Some details of this effect were investigated. To give a more complete picture of this subject first some typical results, already published, are briefly discussed, concerning the thermal, radiation, photochemical and ultra-sonic annealing of ammonium and potassium sulphate as well as of ammonium and potassium dichromate. Afterwards new experimental data are reported showing the influence of the ammonium group on the thermal, radiation and ultra-sonic annealing of mono-, di- and triammonium phosphates. It was established that under the conditions of neutron irradiation in the pile the ammonium group in a compound can be transformed into certain metastabile recoil fragments, which can lead to the formation of reducing substances, e. g. hydrazine. The yield of hydrazine increases by the subsequent treatment of the neutron-irradiated solid samples with gamma-rays, ultra sound etc. Simultaneously with the increase in the hydrazine yield a strong change of the retention occurs. (author) [French] Le groupe ammonium peut jouer un role essentiel dans les differents processus de recuit des composes d'ammonium exposes aux neutrons. L'auteur a etudie certains aspects des effets de ce groupe. Pour donner un tableau plus complet  More>>
Authors:
Getoff, N. [1] 
  1. Institute Of Chemistry, Oesterreichische Studiengesellschaft fuer Atomenergie GmbH, Vienna (Austria)
Publication Date:
Apr 15, 1965
Product Type:
Conference
Report Number:
IAEA-SM-57/91
Resource Relation:
Conference: Symposium on Chemical Effects Associated with Nuclear Reactions and Radioactive Transformations, Heidelberg (Germany), 7-11 Dec 1964; Other Information: 17 refs., 6 figs., 4 tabs.; Related Information: In: Chemical Effects of Nuclear Transformations. Vol. II. Proceedings of the Symposium on Chemical Effects Associated with Nuclear Reactions and Radioactive Transformations| 572 p.
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; AMMONIUM COMPOUNDS; ANNEALING; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTION YIELD; DICHROMATES; GAMMA RADIATION; HYDRAZINE; IRRADIATION; NEUTRON REACTIONS; NEUTRONS; PHOSPHATES; PHOTOCHEMISTRY; POTASSIUM; RECOILS; SOUND WAVES; SULFATES; THERMAL RADIATION
OSTI ID:
22184027
Research Organizations:
International Atomic Energy Agency, Vienna (Austria); Joint Commission on Applied Radioactivity of the International Council of Scientific Unions, Paris (France)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13M3335008562
Submitting Site:
INIS
Size:
page(s) 279-290
Announcement Date:
Jan 30, 2014

Conference:

Citation Formats

Getoff, N. The Effect of the Ammonium Group on the Different Annealing Processes; Role du Groupe Ammonium dans les Differents Processus de Recuit; 042d 0424 0424 0415 041a 0422 0410 041c 041c 041e 041d 0418 0415 0412 041e 0419 0413 0420 0423 041f 041f 042b 041d 0410 0420 0410 0417 041b 0418 0427 041d 042b 0415 041f 0420 041e 0426 0415 0421 0421 042b 041e 0422 0416 0418 0413 0410 ; Efecto del Grupo Amonio en Diferentes Procesos de Recocido. IAEA: N. p., 1965. Web.
Getoff, N. The Effect of the Ammonium Group on the Different Annealing Processes; Role du Groupe Ammonium dans les Differents Processus de Recuit; 042d 0424 0424 0415 041a 0422 0410 041c 041c 041e 041d 0418 0415 0412 041e 0419 0413 0420 0423 041f 041f 042b 041d 0410 0420 0410 0417 041b 0418 0427 041d 042b 0415 041f 0420 041e 0426 0415 0421 0421 042b 041e 0422 0416 0418 0413 0410 ; Efecto del Grupo Amonio en Diferentes Procesos de Recocido. IAEA.
Getoff, N. 1965. "The Effect of the Ammonium Group on the Different Annealing Processes; Role du Groupe Ammonium dans les Differents Processus de Recuit; 042d 0424 0424 0415 041a 0422 0410 041c 041c 041e 041d 0418 0415 0412 041e 0419 0413 0420 0423 041f 041f 042b 041d 0410 0420 0410 0417 041b 0418 0427 041d 042b 0415 041f 0420 041e 0426 0415 0421 0421 042b 041e 0422 0416 0418 0413 0410 ; Efecto del Grupo Amonio en Diferentes Procesos de Recocido." IAEA.
@misc{etde_22184027,
title = {The Effect of the Ammonium Group on the Different Annealing Processes; Role du Groupe Ammonium dans les Differents Processus de Recuit; 042d 0424 0424 0415 041a 0422 0410 041c 041c 041e 041d 0418 0415 0412 041e 0419 0413 0420 0423 041f 041f 042b 041d 0410 0420 0410 0417 041b 0418 0427 041d 042b 0415 041f 0420 041e 0426 0415 0421 0421 042b 041e 0422 0416 0418 0413 0410 ; Efecto del Grupo Amonio en Diferentes Procesos de Recocido}
author = {Getoff, N.}
abstractNote = {The ammonium group can play an essential role in the different annealing processes of neutron-irradiated ammonium compounds. Some details of this effect were investigated. To give a more complete picture of this subject first some typical results, already published, are briefly discussed, concerning the thermal, radiation, photochemical and ultra-sonic annealing of ammonium and potassium sulphate as well as of ammonium and potassium dichromate. Afterwards new experimental data are reported showing the influence of the ammonium group on the thermal, radiation and ultra-sonic annealing of mono-, di- and triammonium phosphates. It was established that under the conditions of neutron irradiation in the pile the ammonium group in a compound can be transformed into certain metastabile recoil fragments, which can lead to the formation of reducing substances, e. g. hydrazine. The yield of hydrazine increases by the subsequent treatment of the neutron-irradiated solid samples with gamma-rays, ultra sound etc. Simultaneously with the increase in the hydrazine yield a strong change of the retention occurs. (author) [French] Le groupe ammonium peut jouer un role essentiel dans les differents processus de recuit des composes d'ammonium exposes aux neutrons. L'auteur a etudie certains aspects des effets de ce groupe. Pour donner un tableau plus complet de la question, il commence par exposer succinctement certains resultats typiques deja publies et qui ont trait au recuit thermique, au radiorecuit, au recuit photochimique et au recuit ultrasonique du sulfate d'ammonium et de potassium ainsi que du bichromate d'ammonium et de potassium. Ensuite il rend compte de donnees experimentales nouvelles qui montrent l'influence du groupe ammonium sur le recuit thermique, le radiorecuit et le recuit ultrasonique des phosphates mono-, bi- et triammoniques. Il a determine que dans les conditions d'irradiation neutronique en pile, le groupe ammonium dans un compose peut etre transforme en certains fragments de recul metastables qui peuvent susciter la formation de substances reductrices, par exemple l'hydrazine. Le rendement en hydrazine augmente quand les echantillons solides exposes aux neutrons sont ulterieurement traites par les rayons gamma, les ultrasons, etc. Une forte variation de la retention se produit en meme temps que croit le rendement en hydrazine. (author) [Spanish] El grupo amonio puede desempenar un papel fundamental en los diferentes procesos de recocido de compuestos amonicos sometidos a irradiacion neutronica. Se han investigado algunas particularidades de este efecto. Con el proposito de dar una vision mas amplia de este tema, se examinan brevemente en primer lugar algunos resultados tipicos, ya publicados, referentes al recocido termico, por irradiacion, fotoquimico y ultrasonico de sulfatos de amonio y de potasio, asi como de dicromatos de amonio y de potasio. Seguidamente se dan a conocer nuevos datos experimentales que muestran la influencia del grupo amonio en el recocido termico, por irradiacion ye ultrasonico de fosfatos mono, di y triamonico. Se ha demostrado que en las condiciones de irradiacion neutronica reinantes en-el reactor, el grupo amonio de un compuesto puede transformarse en ciertos fragmentos de retroceso metaestables capaces de dar origen a sustancias reductoras como, por ejemplo, lahidracina. El rendimiento dehidracina aumenta sometiendo las muestras irradiadas con neutrones a un tratamiento ulterior con rayos gamma, ultrasonidos, etc. Paralelamente al aumento del rendimiento de hidracina, se modifica considerablemente la retencion. (author) [Russian] Ammonievaja gruppa mozhet igrat' vazhnuju rol' v razlichnyh processah otzhiga soedinenij ammonija, obluchennyh nejtronami. Issledovalis' nekotorye detali jetogo jeffekta. Dlja togo, chtoby dat' bolee polnuju kartinu jetogo voprosa, vnachale kratko obsuzhdajutsja nekotorye tipichnye,uzhe opublikovannye rezul'taty, kasajushhiesja teplovogo, radiacionnogo, fotohimicheskogo i ul'trazvukovogo otzhiga sul'fata ammonija i kalija, a takzhe dihromatov ammonija i kalija. Zatem predstavljajutsja jeksperimental'nye dannye, pokazyvajushhie vlijanie ammonievoj gruppy na teplovoj, radiacionnyj i ul'trazvukovoj otzhig mono-, di- i trifosfatov ammonija. Bylo ustanovleno, chto v uslovijah nejtronnogo obluchenija v reaktore ammonievaja gruppa soedinenij mozhet transformirovat'sja v nekotorye metastabnl'nye fragmenty otdachi, kotorye mogut privesti k obrazovaniju vosstanavlivajushhih veshhestv, naprimer gidrazina. Vyhod gidrazina uvelichivaetsja pri posledujushhej obrabotke obluchennyh nejtronami tverdyh obrazcov gamma-luchami, ul'trazvukom i t.d. Odnovremenno s rostom vyhoda gidrazina proishodit bol'shoe izmenenie v uderzhanii. (author)}
place = {IAEA}
year = {1965}
month = {Apr}
}