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

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:
;
Publication Date:
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. Web.
Laux, P G, & Brown, E A. DETERMINATION OF CHLORIDE IN URANIUM-BEARING MATERIALS BY A POTENTIOMETRIC TITRATION METHOD. United States.
Laux, P G, and Brown, E A. Sat . "DETERMINATION OF CHLORIDE IN URANIUM-BEARING MATERIALS BY A POTENTIOMETRIC TITRATION METHOD". United States.
@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}
}

Technical Report:
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