THE DETERMINATION OF THE MAJOR CONSTITUENTS OTHER THAN URANIUM IN BELGIAN CONGO ORE
Methods for determining the major constituents of Belgian Congo ore other than uranium are reviewed. A method is given for the determination of cobalt by precipitation with potassium ethyl xanthate from a nitric acid solution of the ore. After wet oxidation of the precipitate, it is titrated potentiometrically in ammoniacal citrate solution with potassium ferricyanide. A method for the determination of silicon is given in which the silica is dehydrated by fuming with perchloric acid. After filtration and ignition, it is volatized as the fluoride, and the silica is deternfined from weight loss. Nickel is determined from a solution of the ore in nitric acid by double precipitation with dimethyl glyoxime after addition of citrate ion, hydroxylamine, and ammonia. Molybdenum is determined by precipitation as lead molybdate after preliminary separation with benzoin oxime. Aluminum is determined by precipitation as the benzoate, thioglycolic acid being used to complex the iron. The aluminum is then estimated gravimetrically with oxime. A composite method is presented for the deterndnation of lead, iron, alununum, calciuna, and magnesium. (C.J.G.)
- Research Organization:
- Gt. Brit. Springfields Works, Springfields, Lancs, England
- NSA Number:
- NSA-14-011614
- OSTI ID:
- 4180090
- Report Number(s):
- SCS-R-91
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ALUMINUM
AMINES
AMMONIA
AMMONIUM COMPOUNDS
ANIONS
BENZOIC ACID
BENZOINOXIME
CALCIUM
CHEMICAL REACTIONS
CITRIC ACID
COBALT
COMBUSTION
CYANIDES
DIMETHYLGLYOXIME
ELECTRIC POTENTIAL
ETHYL RADICALS
FILTERS
FLUORIDES
GLYCOLIC ACID
HUMIDITY
HYDROXIDES
HYDROXYLAMINE
IRON COMPLEXES
IRON COMPOUNDS
LEAD
LEAD COMPOUNDS
MAGNESIUM
MEASURED VALUES
MOLYBDENUM
NICKEL
NITRIC ACID
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
ORGANOMETALLICS
OXIDATION
PERCHLORIC ACID
POTASSIUM COMPOUNDS
PRECIPITATION
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
REVIEW
SEPARATION PROCESSES
SILICON OX