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Title: The nature of the volatile technetium species formed during vitrification of borosilicate glass

Abstract

Vitrification of sodium pertechnetate into borosilicate glass was performed in air at 1100 C. A glass with a composition similar to the one developed for vitrification of the low activity waste at the Hanford site was used. A red volatile species was observed above 600° C. The extended X-ray absorption fine structure results indicate the environment of the absorbing Tc atom consists of 2.9(6) O atoms at 1.73(2) A° , 2.2(4) O atoms at 2.02(2) A° , and 0.8(2) O atoms at 2.18(2) A° . The results are consistent with the presence of a mononuclear species with a structure closely related to TcO 3(OH)(H 2O) 2.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1330087
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Journal of Radioanalytical and Nuclear Chemistry
Additional Journal Information:
Journal Volume: 306; Journal Issue: 2; Journal ID: ISSN 0236-5731
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; Red; Technetium; Vitrification; Volatile; X-ray absorbance spectroscopy

Citation Formats

Childs, Bradley C., Poineau, Frederic, Czerwinski, Kenneth R., and Sattelberger, Alfred P. The nature of the volatile technetium species formed during vitrification of borosilicate glass. United States: N. p., 2015. Web. doi:10.1007/s10967-015-4203-5.
Childs, Bradley C., Poineau, Frederic, Czerwinski, Kenneth R., & Sattelberger, Alfred P. The nature of the volatile technetium species formed during vitrification of borosilicate glass. United States. doi:10.1007/s10967-015-4203-5.
Childs, Bradley C., Poineau, Frederic, Czerwinski, Kenneth R., and Sattelberger, Alfred P. Tue . "The nature of the volatile technetium species formed during vitrification of borosilicate glass". United States. doi:10.1007/s10967-015-4203-5.
@article{osti_1330087,
title = {The nature of the volatile technetium species formed during vitrification of borosilicate glass},
author = {Childs, Bradley C. and Poineau, Frederic and Czerwinski, Kenneth R. and Sattelberger, Alfred P.},
abstractNote = {Vitrification of sodium pertechnetate into borosilicate glass was performed in air at 1100 C. A glass with a composition similar to the one developed for vitrification of the low activity waste at the Hanford site was used. A red volatile species was observed above 600° C. The extended X-ray absorption fine structure results indicate the environment of the absorbing Tc atom consists of 2.9(6) O atoms at 1.73(2) A° , 2.2(4) O atoms at 2.02(2) A° , and 0.8(2) O atoms at 2.18(2) A° . The results are consistent with the presence of a mononuclear species with a structure closely related to TcO3(OH)(H2O)2.},
doi = {10.1007/s10967-015-4203-5},
journal = {Journal of Radioanalytical and Nuclear Chemistry},
issn = {0236-5731},
number = 2,
volume = 306,
place = {United States},
year = {2015},
month = {5}
}