Use of a Lead Reductor in the Potentiometric Determination of Uranium and Iron
Iron and U were determined simultaneously by potentiometric titration with potassium dichromate, The samples were passed through a Pb reductor into sufficient potassium dichromate to oxidize 95% of the estimated U in the sample. After the resulting solution was purged with Ar and heated to 85 to 95 deg C, the remaining 5% of the uranium(IV was titrated, The potential break occurred between 1280 and +300 mv vs the saturated calomel electrode. After the uranium(IV) was oxidized, iron(II) was titrated with dichromate. The potential break occurred between +660 and +700 mv vs the saturated calomel electrode. The results were accurate to plus or minus 0.35%. Interferences included Tl, V, As, Mo, Sn, and Sb.
- Research Organization:
- Monsanto Research Corp., Miamisburg, Ohio
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-014164
- OSTI ID:
- 4750334
- Journal Information:
- Analytical Chemistry, Journal Name: Analytical Chemistry Journal Issue: 3 Vol. 35; ISSN 0003-2700
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ANTIMONY
ARGON
ARSENIC
CHROMIUM OXIDES
CLEANING
ELECTRIC POTENTIAL
ELECTRODES
HEATING
INTERFERENCE
IRON
LEAD
MERCURY CHLORIDES
MOLYBDENUM
OXIDATION
POTASSIUM OXIDES
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
REDUCTION
SPECTRA
TIN
TITANIUM
URANIUM
VANADIUM