THE SEPARATION AND DETERMINATION OF MICROGRAM AMOUNTS OF SCANDIUM AND THORIUM

Journal Article · Thu Aug 01 04:00:00 EDT 1963 · Sci. Sinica (Peking)

OSTI ID:4667567

Nee, C; Liang, S

Th is separated from Sc in acidic (pH = 3.2 to 3.4) aqueous solutions by extraction using 5,7-dichloro-8-quinolinol in chloroform. The organic layer, containing the Th, is mixed with Xylenol Orange in ethanolic solution, and the optical absorbancy is measured in order to determine the Th content. Sc is then separated from the original aqueous solution by increasing the acidity to pH 5 to 5.5, and again extracting with 5,7-dichloro-8-quinolinol in chloroform. At this pH range, the Sc is taken into the organic layer. The Sc is then determined by the same method as that used for the Th. The method is applicable to Sc contents of 3 to 15 mu g and Th contents of 10 to 100 mu g. (T.F.H.)

• Research Organization: Inst. of Chemistry, Peking
• NSA Number: NSA-17-035654
• OSTI ID: 4667567
• Journal Information: Sci. Sinica (Peking), Journal Name: Sci. Sinica (Peking) Vol. Vol: 12
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ACIDITY
CHEMISTRY
CHLORINATED HYDROCARBONS
CHLOROFORM
DYES
ETHANOL
ORGANIC CHLORINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
QUANTITATIVE ANALYSIS
SCANDIUM
SCANDIUM COMPLEXES
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
THORIUM
THORIUM COMPLEXES
TRACE AMOUNTS
WATER
XYLENOL ORANGE