THE DETERMINATION OF FREE NITRIC ACID IN URANYL NITRATE SOLUTIONS

Technical Report · Tue Jul 25 04:00:00 EDT 1950

OSTI ID:4241056

The uranyl ion is complexed with potassium oxalate to form potassium uranyl oxalate which is stable to hydroxyl ions. Excess potassium oxalate then reacts with thc free nitric acid to form potassium hydrogen oxalate, which in turn reacts with ammonium benzoate to liberate free benzoic acid. The benzoic acid is extracted by shaking with chloroform until equilibrium is obtained when the lower organic layer is run off and titrated with alcoholic caustic potash to the phenolphthalein end point. Owing to partition characteristics of the chloroform/ benzoic acid/potassium oxalate system, extraction is not complete, and a calibration curve must be used to evaluate results. Concentration range is 0 to 6% nitric acid. (auth)

• Research Organization: Gt. Brit. Springfields Works, Springfields, Lancs, England
• NSA Number: NSA-13-016779
• OSTI ID: 4241056
• Report Number(s): SCS-M-129
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALCOHOLS
AMMONIUM COMPOUNDS
BENZOIC ACID
CHEMICAL REACTIONS
CHEMISTRY
CHLORINATED HYDROCARBONS
CHLOROFORM
DIAGRAMS
HYDROXIDES
IONS
LAYERS
NITRIC ACID
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
OXALATES
PHENOLPHTHALEIN
POTASSIUM COMPOUNDS
POTASSIUM HYDROXIDES
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
SALTS
SOLUTIONS
SOLVENT EXTRACTION
URANIUM COMPLEXES
URANYL NITRATES