SPECTROPHOTOMETRIC DETERMINATION OF MOLYBDENUM IN URANIUM WITH 8-QUINOLINOL

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Bunscki Kagaku

DOI:https://doi.org/10.2116/bunsekikagaku.11.47· OSTI ID:4156704

Motojima, K; Hashitani, H; Izawa, K; Yoshida, H

A rapid spectrophotometric method for molybdenum, based on the extraction with chloroform as the 8-quinolinate was developed. Extraction of uranium is prevented by the use of a definite amount of fluoride ion as a masking agent (250 mg of fluoride ion for each 1 gram of uranium). In this condition, optimum pH range for the extraction of molybdenum is from 3.0 to 5.5. Common impurities are tolerated at reasonable levels; all other metals that are apt to accompany wvith molybdenum can readily be eliminated by washing the extract with an oxalic acid solution (0.1M, pH 1). The method is accurate and rapid ior the determination of molybdenum in uranium metal down to 0.5 ppm, and can also be applied to the analysis of uranium oxides or yellow cake containing relatively large amounts of molybdenum. (auth)

• Research Organization: Japan Atomic Energy Research Inst., Tokyo
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-001530
• OSTI ID: 4156704
• Journal Information: Bunscki Kagaku, Journal Name: Bunscki Kagaku Vol. Vol: 11
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ACIDITY
CHEMISTRY
CHLOROFORM
CLEANING
EFFICIENCY
FLUORIDES
HETEROCYCLICS
HYDROXIDES
IMPURITIES
MASKING AGENTS
MOLYBDENUM
MOLYBDENUM COMPLEXES
ORGANIC CHLORINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXALIC ACID
PHOTOMETRY
QUANTITATIVE ANALYSIS
QUINOLINE
SOLUTIONS
SOLVENT EXTRACTION
SPECTROSCOPY
URANIUM
URANIUM OXIDES