QUANTITATIVE SPECTROGRAPHIC DETERMINATION OF METALLIC IMPURITIES IN ZIRCONIUM

Journal Article · Wed Mar 01 04:00:00 EST 1961 · Bunseki Kagaku (Japan)

DOI:https://doi.org/10.2116/bunsekikagaku.10.246· OSTI ID:4004318

Oda, N; Idohara, M

Spectrographic determination of Hf and other metals as impurities in metallic Zr and Zr compounds was investigated by the use of an ordinary d-c arc and intermittent a-c arc, and a medium quartz spectrograph. A method for practical applications was established, the outline of the procedure being as follows: (a) Impurities other than Hf (Al, Cr, Mg, Mn, Pb, and Ti) are determined by the d-c arc method after addition of Co as sn internal standard to the sample and converting them into oxides. The average coefficient of variation of analysis is about 9%. (b) Hf is determined by the d-c arc method or by the intermittent a-c arc method after converting the sample to oxide. The lower limit of estimation of Hf by the former method is 100 ppm and that by the latter is 10 ppm, each coefficient of vibration being 10%. The method described in (b) can be applied simultaneously for determination of other impurity elements. (auth)

• Research Organization: Nippon Soda Co., Ltd., Takaoka, Japan
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-019322
• OSTI ID: 4004318
• Journal Information: Bunseki Kagaku (Japan), Journal Name: Bunseki Kagaku (Japan) Vol. Vol: 10; ISSN BNSKA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ALUMINUM
CHEMISTRY
CHROMIUM
COBALT
HAFNIUM
IMPURITIES
INSTRUMENTS
LEAD
MAGNESIUM
MANGANESE
MEASURED VALUES
OXIDES
QUANTITATIVE ANALYSIS
QUARTZ
SPECTRA
STANDARDS
TITANIUM
ZIRCONIUM
ZIRCONIUM COMPOUNDS