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

Technical Report · Sat Nov 01 00:00:00 EST 1958

OSTI ID:4280855

Laux, P G; Brown, E A

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)

• Research Organization: National Lead Co. of Ohio, Cincinnati
• DOE Contract Number: AT(30-1)-1156
• NSA Number: NSA-13-008626
• OSTI ID: 4280855
• Report Number(s): NLCO-751
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-59
• Country of Publication: United States
• Language: English

Related Subjects

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