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Title: Iodine Solubility in Low-Activity Waste Borosilicate Glass at 1000 °C

Abstract

The purpose of this study was to determine the solubility of iodine in a low-activity waste borosilicate glass when heated inside an evacuated and sealed fused quartz ampoule. The iodine was added to glass frit as KI in quantities of 100–24000 ppm iodine (by mass), each mixture was added to an ampoule, the ampoule was heated at 1000 °C for 2 h and then air quenched. In samples with ≥12000 ppm iodine, low viscosity salt phases were observed on the surface of the melts during cooling that solidified into a white coating upon cooling. These salts were identified as mixtures of KI, NaI, and Na2SO4 with X-ray diffraction (XRD). The iodine concentrations in glass specimens were analyzed with inductively-coupled plasma mass spectrometry and the overall iodine solubility was determined to be 10000 ppm by mass. Several crystalline inclusions of iodine sodalite, Na8(AlSiO4)6I2, were observed in the 24000 ppm specimen and were verified with micro-XRD and wavelength dispersive spectroscopy.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1133225
Report Number(s):
PNNL-SA-100866
39968; 830403000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Journal of Nuclear Materials, 452(1-3):178-188
Additional Journal Information:
Journal Name: Journal of Nuclear Materials, 452(1-3):178-188
Country of Publication:
United States
Language:
English
Subject:
iodine solubility; low-activity waste; borosilicate; Environmental Molecular Sciences Laboratory

Citation Formats

Riley, Brian J., Schweiger, Michael J., Kim, Dong-Sang, Lukens, Wayne W., Williams, Benjamin D., Iovin, Cristian, Rodriguez, Carmen P., Overman, Nicole R., Bowden, Mark E., Dixon, Derek R., Crum, Jarrod V., Mccloy, John S., and Kruger, Albert A. Iodine Solubility in Low-Activity Waste Borosilicate Glass at 1000 °C. United States: N. p., 2014. Web. doi:10.1016/j.jnucmat.2014.04.027.
Riley, Brian J., Schweiger, Michael J., Kim, Dong-Sang, Lukens, Wayne W., Williams, Benjamin D., Iovin, Cristian, Rodriguez, Carmen P., Overman, Nicole R., Bowden, Mark E., Dixon, Derek R., Crum, Jarrod V., Mccloy, John S., & Kruger, Albert A. Iodine Solubility in Low-Activity Waste Borosilicate Glass at 1000 °C. United States. doi:10.1016/j.jnucmat.2014.04.027.
Riley, Brian J., Schweiger, Michael J., Kim, Dong-Sang, Lukens, Wayne W., Williams, Benjamin D., Iovin, Cristian, Rodriguez, Carmen P., Overman, Nicole R., Bowden, Mark E., Dixon, Derek R., Crum, Jarrod V., Mccloy, John S., and Kruger, Albert A. Wed . "Iodine Solubility in Low-Activity Waste Borosilicate Glass at 1000 °C". United States. doi:10.1016/j.jnucmat.2014.04.027.
@article{osti_1133225,
title = {Iodine Solubility in Low-Activity Waste Borosilicate Glass at 1000 °C},
author = {Riley, Brian J. and Schweiger, Michael J. and Kim, Dong-Sang and Lukens, Wayne W. and Williams, Benjamin D. and Iovin, Cristian and Rodriguez, Carmen P. and Overman, Nicole R. and Bowden, Mark E. and Dixon, Derek R. and Crum, Jarrod V. and Mccloy, John S. and Kruger, Albert A.},
abstractNote = {The purpose of this study was to determine the solubility of iodine in a low-activity waste borosilicate glass when heated inside an evacuated and sealed fused quartz ampoule. The iodine was added to glass frit as KI in quantities of 100–24000 ppm iodine (by mass), each mixture was added to an ampoule, the ampoule was heated at 1000 °C for 2 h and then air quenched. In samples with ≥12000 ppm iodine, low viscosity salt phases were observed on the surface of the melts during cooling that solidified into a white coating upon cooling. These salts were identified as mixtures of KI, NaI, and Na2SO4 with X-ray diffraction (XRD). The iodine concentrations in glass specimens were analyzed with inductively-coupled plasma mass spectrometry and the overall iodine solubility was determined to be 10000 ppm by mass. Several crystalline inclusions of iodine sodalite, Na8(AlSiO4)6I2, were observed in the 24000 ppm specimen and were verified with micro-XRD and wavelength dispersive spectroscopy.},
doi = {10.1016/j.jnucmat.2014.04.027},
journal = {Journal of Nuclear Materials, 452(1-3):178-188},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {4}
}

Works referencing / citing this record:

Reduction of hypervalent iodine by coordination to iron( iii ) and the crystal structures of PhIO and PhIO 2
journal, January 2016

  • Wegeberg, Christina; Frankær, Christian Grundahl; McKenzie, Christine J.
  • Dalton Transactions, Vol. 45, Issue 44
  • DOI: 10.1039/c6dt02937j