SPECTROPHOTOMETRIC DETERMINATION OF YTTRIUM IN Fe-Cr-Al AND Ni-Cr ALLOYS. (ELECTRIC RESISTANCE MATERIALS)

Journal Article · Mon Jul 01 04:00:00 EDT 1963 · Denki Shikensho Iho (Japan) Changed to Denshi Gijutsu Sogo Kenkyusho Iho

OSTI ID:4131363

Okada, H; Kaneko, K; Goseki, S

Spectrophotometric determination of yttrium in Fe-Cr--Al and Ni--Cr alloys by the use of methylthymol blue as a color reagent was studied. The sample of 0.1 to 1 g is dissolved with 1 to 1 hydrochloric acid, nitric acid, iron, nickel, and chromium in the alloy are separated by mercury cathode electrolysis. An aliquot of the solution is transferred into a 100 ml beaker, and definite amounts of acethylacetone and methylthymol blue solutions are added. The mixture is adjusted to pH 6.4 plus or minus 0.05 by ammonia water and hexamine solution, and is poured into a 25 ml volumetric flask, which is then filled with pure water. The absorbance is measured at 610 m mu after twenty minutes. The coefficients of variation are 4.8% for the yttrium levels of 0.1 to 1%. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-18-008300
• OSTI ID: 4131363
• Journal Information: Denki Shikensho Iho (Japan) Changed to Denshi Gijutsu Sogo Kenkyusho Iho, Journal Name: Denki Shikensho Iho (Japan) Changed to Denshi Gijutsu Sogo Kenkyusho Iho Vol. Vol: 27; ISSN DESIA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACETONE
ACETYL RADICALS
ALUMINUM ALLOYS
AMINES
AMMONIA
CATHODES
CHEMISTRY
CHROMIUM ALLOYS
DYES
ELECTROLYSIS
HYDROCHLORIC ACID
IRON ALLOYS
MERCURY
METHYLTHYMOL BLUE
NICKEL ALLOYS
NITRIC ACID
PHOTOMETRY
QUANTITATIVE ANALYSIS
SEPARATION PROCESSES
SOLUTIONS
SPECTROSCOPY
WATER
YTTRIUM