SPECTROSCOPIC METHODS FOR THE DETERMINATION OF NIOBIUM, TANTALUM, ZIRCONIUM, TITANIUM, BERYLLIUM, AND INDIUM

Journal Article · Tue Jan 01 04:00:00 EST 1957 · Trudy Vsesoyuz. Magadansk. Nauch.-Issledovatel. Inst. Ministerstva Tsvet. Met. S.S.S.R. Div.

OSTI ID:4206800

Nomokonova, N A; Morozova, I F

Quantitative spectroscopic methods for the determination of In, Be, and Ti were developed, and the methods for the determination of Nb, Ta, and Zr in ores and the products of their processing were modified. The determinations were carried out according to the method of three standard specimens. Ores with a known content of components were used as standard speclmens. Curves were plotted with DELTA S--log/sub 10/C coordinates. For the determination of Nb, Ta, Ti, and Zr the test sample was mixed with carbon powder (1: 1) and introduced into a carbon electrode (E) with a pointed portion 2.6 mm in diameter and 12 mm long, the crater being 1.3 mm in diameter and 5 mm deep. The exposure time was 2-3 min with 15 sec of preliminary sparking with a 9.5-amp current. Mo served as the internal standard. The determination of Be and In was carried out by the introduction of 100 to 200 mg of specimen mixed with the internal standard on paper strips between horizontal carbon E's. The E's were ground into the shape of a cone with a stage area of 3 mm. Cr serves as the internal standard in the determination of Be. For the determination of In, Cd or Bl is used. The ranges of the determinations are (in%): In and De 0.001 to 1, Ta and Ti 0.05 to 2, Nb 0.03 to 1, Zr 0.12 to 2. The error of the method is (in%): for Nb, In, Ta plus or minus 8, Zr plus or minus 4 to 8, for Be plus or minus 5, and for Ti plus or minus 10.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-13-022037
• OSTI ID: 4206800
• Journal Information: Trudy Vsesoyuz. Magadansk. Nauch.-Issledovatel. Inst. Ministerstva Tsvet. Met. S.S.S.R. Div., Journal Name: Trudy Vsesoyuz. Magadansk. Nauch.-Issledovatel. Inst. Ministerstva Tsvet. Met. S.S.S.R. Div. Vol. Vol: 4, No. 19
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BERYLLIUM
BISMUTH
CADMIUM
CARBON
CHEMISTRY
CHROMIUM
CONFIGURATION
CURRENTS
DIAGRAMS
ELECTRIC DISCHARGES
ELECTRODES
EMISSION
ERRORS
EXCITATION
INDIUM
LIGHT
MIXING
MOLYBDENUM
NIOBIUM
ORES
PAPER
PHOTOGRAPHY
PHOTOMETRY
POWDERS
QUALITATIVE ANALYSIS
QUANTITY RATIO
SAMPLING
SPECTROSCOPY
STANDARDS
TANTALUM
TITANIUM
TRANSLATIONS
WEIGHT
ZIRCONIUM