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Author Khopkar, S. M. ♦ De, A. K.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ ACETONE ♦ ACIDITY ♦ ALUMINUM ♦ BENZENE ♦ BISMUTH ♦ CERIUM ♦ CHELATES ♦ CITRIC ACID ♦ COBALT ♦ COLOR ♦ COPPER ♦ EDTA ♦ FLUORINATED HYDROCARBONS ♦ MANGANESE ♦ MEASURED VALUES ♦ NICKEL ♦ ORGANIC ACIDS ♦ PHOTOMETRY ♦ QUANTITATIVE ANALYSIS ♦ SILVER ♦ SOLUTIONS ♦ SOLVENT EXTRACTION ♦ SPECTRA ♦ TARTARIC ACID ♦ THORIUM ♦ TTA ♦ URANIUM ♦ WATER
Abstract A colorimetric method was developed for the determination of milligram amounts of cerium(IV) on the basis of a color reaction with 2- thenoyltrifluoroacetone in benzene. The bright orange-red cerium(IV)-TTA chelate solution (in benzene) follows Beer's law at 450 m mu over the range of 3 to 40 gamma of cerium(IV) per ml. At pH 4.0 to 6.0, 80% or more of cerium(IV) is removed from an aqueous solution of TTA-benzene in a single extraction. The colored system is stable for 2.5 hours. The determination can tolerate equal amounts of silver, manganese, copper, and cobalt, whereas nickel, bismuth, aluminum, thorium, uranium(VI), citrate, tartrate, and EDTA seriously interfere. The method is accurate and reproducible to within plus or minus 2% and offers a procedure for simultaneous extraction and determination of cerium(IV). (auth)
ISSN 00032700
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-04-01
Publisher Department Jadavpur Univ., Calcutta
Journal Analytical Chemistry
Volume Number 32
Organization Jadavpur Univ., Calcutta


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