PHOTOMETRIC DETERMINATION OF CERIUM BY MEANS OF O-TOLIDINE

Journal Article · Fri Jul 01 04:00:00 EDT 1960 · Zhur. Anal. Khim.

OSTI ID:4127083

Iordanov, N; Daiev, K

The possibility was shown of rather selective and sensitive determination of cerium by means of o-tolidine. Cerium was isolated as oxalate together with lanthanum. as a collector. The oxalates are converted into oxides and are then dissolved in hot concentrated sulfuric acid. The otolidine solution was added and the optical density of the obtained yellow solution was measured. The molar extinction coefficient was 9500. The determination of cerium is possible in the presence of thorium, rare-earths, and in the presence of large quantities of iron, aluminum, manganese. and titanium. The method was used for the determination of cerium in apatite, titanite, and monzonite. (auth)

• Research Organization: Sofia State Univ.
• NSA Number: NSA-15-000179
• OSTI ID: 4127083
• Journal Information: Zhur. Anal. Khim., Journal Name: Zhur. Anal. Khim. Vol. Vol: 15
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ALUMINUM
APATITES
CALCIUM SILICATES
CERIUM
CHEMISTRY
CONVERSION
DENSITY
IGNEOUS ROCKS
IRON
LIGHT
MANGANESE
MEASURED VALUES
MONZONITES
OPACITY
ORGANIC COMPOUNDS
OXALATES
OXIDES
PHOTOMETRY
QUANTITATIVE ANALYSIS
RARE EARTHS
SULFURIC ACID
THORIUM
TITANITE
TITANIUM
TITANIUM SILICATES