DETERMINATION OF NICKEL IN HIGH-PURITY NIOBIUM, TANTALUM, MOLYBDENUM AND TUNGSTEN METALS BY CHLOROFORM EXTRACTION OF NICKELII DIMETHYLGLYOXIMATE

Journal Article · Sun Sep 01 00:00:00 EDT 1963 · Talanta (England)

DOI:https://doi.org/10.1016/0039-9140(63)80131-9· OSTI ID:4628808

Penner, E M; Inman, W R

A spectrophotometric method for determining 0.0005-0.10% of nickel in high-purity niobium, tantalum, molybdenum, and tungsten metals is described. After sample dissolution and pH adjustment to 6.0, nickel(II) dimethylglyoximate is extracted with cholorform from an ammonium tartrate-boric acid medium. The chloroform extract is washed with dilute ammonia solution to remove interfering impurities, and nickel is determined spectrophotometrically at 370 m mu directly in the extract. (auth)

• Research Organization: Dept. of Mines and Technical Surveys, Ottawa
• NSA Number: NSA-17-038959
• OSTI ID: 4628808
• Journal Information: Talanta (England), Journal Name: Talanta (England) Vol. Vol: 10; ISSN TLNTA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
AMMONIA
AMMONIUM COMPOUNDS
BORON OXIDES
CHEMISTRY
CHLOROFORM
CLEANING
DIMETHYLGLYOXIME
INTERFERING ELEMENTS
MOLYBDENUM
NICKEL
NICKEL COMPLEXES
NIOBIUM
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
PHOTOMETRY
QUANTITATIVE ANALYSIS
SOLUTIONS
SOLVENT EXTRACTION
SPECTROSCOPY
TANTALUM
TARTARIC ACID
TUNGSTEN