DETERMINATION OF OXYGEN IN ZIRCONIUM METAL BY VACUUM FUSION METHOD AND BROMINATION-CARBON REDUCTION METHOD

Journal Article · Tue Jul 01 04:00:00 EDT 1958 · Nippon Kinzoku Gakkaishi (Japan)

OSTI ID:4269169

Otake, Y

Determination of oxygen in zirconium metal was studied by the vacuum fusion method and the bromination-carbon reduction method. In the vacuum fusion method, the iron-tin bath technique usually applied for the analysis of gases in titanium metal was used. In this case the molten iron bath in a graphite crucible is the reaction medium. The sample reacts with the molten iron bath containing tin to form a stable carbide of zirconium. At a furnace temperature of 1850 deg C, complete reduction of the oxides is effected within 30 minutes. The evolved gases are extracted and analyzed. In the bromination--carbon reduction method, the sample is mixed with carbon and treated with bromine at 925 deg C using argon as carrier gas. The oxygen in the sample is converted into carbon monoxide, which is then oxidized to carbon dioxide with hot copper oxide. The carbon dioxide is absorbed into a weighing bulb containing sodium hydroxide. The results with various samples of materials with these methods show a good agreement. In the vacuum fusion method, oxygen in zirconium metal could be determined with an accuracy of plus or minus 0.0l%. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-13-016846
• OSTI ID: 4269169
• Journal Information: Nippon Kinzoku Gakkaishi (Japan), Journal Name: Nippon Kinzoku Gakkaishi (Japan) Vol. Vol: 22; ISSN NIKGA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ABSORPTION
ARGON
BROMINE
CARBON
CARBON DIOXIDE
CARBON MONOXIDE
CHEMICAL REACTIONS
CHEMISTRY
COPPER OXIDES
CRUCIBLES
FURNACES
GASES
GRAPHITE
HIGH TEMPERATURE
IRON
MELTING
METALS
OXYGEN
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
REDUCTION
SODIUM HYDROXIDES
TIN
TITANIUM
VACUUM
ZIRCONIUM
ZIRCONIUM CARBIDES