Evaluation of Chloride-Ion-Specific Electrodes as In Situ Chemical Sensors for Monitoring Total Chloride Concentration In Aqueous Solutions Generated During The Recovery of Plutonium from Molten Salts Used in Plutonium Electrorefining Operations
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Two commercially available chloride-ion-specific electrodes (CLISEs), a solid-state type and a membrane type, were evaluated as potential in situ chemical sensors for determining total chloride ion concentration in mixed sodium chloride/potassium chloride/hydrochloric acid solutions generated during the recovery of plutonium from molten salts used in plutonium electrorefining operations. Because the response of the solid-state CLISE was closer than was the response of the membrane-type CLISE to the theoretical response predicted by the Nernst equation, the solid-state CLISE was selected for further evaluation. A detailed investigation of the characteristics of the chloride system and the corresponding CLISE response to concentration changes suggested four methods by which the CLISE could be used either as a direct, in situ sensor or as an indirect sensor through which an analysis could be performed on-line with a sample extracted from the process solution.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10190628
- Report Number(s):
- LA-12246; ON: DE93002158
- Resource Relation:
- Other Information: PBD: Oct 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
CHLORIDES
ION SELECTIVE ELECTRODE ANALYSIS
PLUTONIUM
ELECTROREFINING
ION-SELECTIVE ELECTRODES
SODIUM CHLORIDES
POTASSIUM CHLORIDES
HYDROCHLORIC ACID
PROCESS SOLUTIONS
MOLTEN SALTS
PYROCHEMICAL REPROCESSING
400102
050800
400702
CHEMICAL AND SPECTRAL PROCEDURES
SPENT FUELS REPROCESSING
PROPERTIES OF RADIOACTIVE MATERIALS