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Details

Sodium tetraphenylborate solution stability: A long term study.

DE93008504

Publication Date	1992
Personal Author	Barnes, M. J.
Page Count	10
Abstract	Sodium tetraphenylborata (NaTPB) is a specialty chemical required for the In Tank Precipitation Process (ITP). It precipitates cesium, aiding in the decontamination of high level radioactive waste solutions. Long term stability of aqueous alkaline solutions of NATPB has been investigated. The focus of the investigation is on the relative stabilities of NATPB solutions exposed to varying temperatures and copper concentrations over an extended period of time. Additionally, vendor-supplied samples, incubated at 40(degree)C, were stored for more than a year without decomposing. Collected data demonstrates that in the absence of elevated copper concentrations, NATPB solutions will remain stable for periods of 1 to 2 years (at a minimum) at maximum expected operating conditions (<40(degree)C). Additionally, biuret, (H(sub 2)NCO)(sub 2)NH, was tested as an additive to prevent copper-induced decomposition without success.
Keywords	Cesium High-Level Radioactive Wastes Sodium Borides Radioactive Waste Processing Acid Neutralizing Capacity Chemical Analysis PH Value Precipitation Savannah River Plant Stability Decontamination EDB/052001 EDB/400102
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	77G - Radioactive Wastes & Radioactivity 77F - Radiation Shielding, Protection, & Safety 99 - Chemistry
Corporate Authors	Westinghouse Savannah River Co., Aiken, SC.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	199318
Contract Number	AC09-89SR18035

Sodium tetraphenylborate solution stability: A long term study.

Sodium tetraphenylborate solution stability: A long term study.
DE93008504

Publication Date	1992
Personal Author	Barnes, M. J.
Page Count	10
Abstract	Sodium tetraphenylborata (NaTPB) is a specialty chemical required for the In Tank Precipitation Process (ITP). It precipitates cesium, aiding in the decontamination of high level radioactive waste solutions. Long term stability of aqueous alkaline solutions of NATPB has been investigated. The focus of the investigation is on the relative stabilities of NATPB solutions exposed to varying temperatures and copper concentrations over an extended period of time. Additionally, vendor-supplied samples, incubated at 40(degree)C, were stored for more than a year without decomposing. Collected data demonstrates that in the absence of elevated copper concentrations, NATPB solutions will remain stable for periods of 1 to 2 years (at a minimum) at maximum expected operating conditions (<40(degree)C). Additionally, biuret, (H(sub 2)NCO)(sub 2)NH, was tested as an additive to prevent copper-induced decomposition without success.
Keywords	Cesium High-Level Radioactive Wastes Sodium Borides Radioactive Waste Processing Acid Neutralizing Capacity Chemical Analysis PH Value Precipitation Savannah River Plant Stability Decontamination EDB/052001 EDB/400102
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	77G - Radioactive Wastes & Radioactivity 77F - Radiation Shielding, Protection, & Safety 99 - Chemistry
Corporate Authors	Westinghouse Savannah River Co., Aiken, SC.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	199318
Contract Number	AC09-89SR18035