DETERMINATION OF CHLORIDE IN URANIUM-BEARING MATERIALS BY A POTENTIOMETRIC TITRATION METHOD

Title: DETERMINATION OF CHLORIDE IN URANIUM-BEARING MATERIALS BY A POTENTIOMETRIC TITRATION METHOD

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Abstract

A direct potentiometric titration method is described for the determination of chloride in the range of 0.005 to 0.15% in uranium-bearing feed materials. The titration is carried out to a predetermined equivalence potential in a 95% methanol--5% nitric acid medium. A silver wire-saturated calomel electrode system is used. The method is rapid, since no preliminary separation of the chloride is required. The major interferences for the titration are iron (III), vanadium (V), permanganate, nitrite, bromide, and iodide. The interference of all ions except bromide and iodide is prevented by the addition of ascorbic acid or ammonium hydroxide. A comparative study of the potentiometric and turbidimetric methods was made. Uranium ore concentrates, nitric acid, and aqueous feed samples were used in this study. Satisfactory agreement was obtained between the two methods, using these sample types. (auth)

Authors:: Laux, P G; Brown, E A

Publication Date:: 1958-11-01

Research Org.:: National Lead Co. of Ohio, Cincinnati

OSTI Identifier:: 4280855

Report Number(s):: NLCO-751

NSA Number:: NSA-13-008626

DOE Contract Number:: AT(30-1)-1156

Resource Type:: Technical Report

Resource Relation:: Other Information: Orig. Receipt Date: 31-DEC-59

Country of Publication:: United States

Language:: English

Subject:: CHEMISTRY; AMMONIUM COMPOUNDS; BROMIDES; CATIONS; CHEMICAL REACTIONS; CHLORIDES; ELECTRIC POTENTIAL; ELECTRODES; ENRICHMENT; ERRORS; HYDROXIDES; IODIDES; IRON COMPOUNDS; MANGANESE OXIDES; MERCURY CHLORIDES; METHANOL; NITRIC ACID; NITRIDES; ORGANIC ACIDS; QUANTITATIVE ANALYSIS; SILVER; URANIUM COMPOUNDS; URANIUM ORES; VANADIUM COMPOUNDS; VITAMIN C; VITAMINS; WIRES

Citation Formats


                    Laux, P G, and Brown, E A. DETERMINATION OF CHLORIDE IN URANIUM-BEARING MATERIALS BY A POTENTIOMETRIC TITRATION METHOD.  United States: N. p., 1958. 
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                    Laux, P G, & Brown, E A. DETERMINATION OF CHLORIDE IN URANIUM-BEARING MATERIALS BY A POTENTIOMETRIC TITRATION METHOD.  United States.

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                    Laux, P G, and Brown, E A. Sat .  
        "DETERMINATION OF CHLORIDE IN URANIUM-BEARING MATERIALS BY A POTENTIOMETRIC TITRATION METHOD".  United States.

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@article{osti_4280855,

  title        = {DETERMINATION OF CHLORIDE IN URANIUM-BEARING MATERIALS BY A POTENTIOMETRIC TITRATION METHOD},

  author       = {Laux, P G and Brown, E A},

  abstractNote = {A direct potentiometric titration method is described for the determination of chloride in the range of 0.005 to 0.15% in uranium-bearing feed materials. The titration is carried out to a predetermined equivalence potential in a 95% methanol--5% nitric acid medium. A silver wire-saturated calomel electrode system is used. The method is rapid, since no preliminary separation of the chloride is required. The major interferences for the titration are iron (III), vanadium (V), permanganate, nitrite, bromide, and iodide. The interference of all ions except bromide and iodide is prevented by the addition of ascorbic acid or ammonium hydroxide. A comparative study of the potentiometric and turbidimetric methods was made. Uranium ore concentrates, nitric acid, and aqueous feed samples were used in this study. Satisfactory agreement was obtained between the two methods, using these sample types. (auth)},

  doi          = {},

  url          = {https://www.osti.gov/biblio/4280855},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1958},

  month        = {11}

}

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