Competitive solvent extraction of alkaline-earth cations into chloroform by lipophilic acyclic polyether dicarboxylic acids

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00285a046· OSTI ID:5493714

Kang, S I; Czech, A; Czech, B P; Stewart, L E; Bartsch, R A

Competitive solvent extraction of alkaline-earth cations from aqueous solutions into chloroform by a series of lipophilic acyclic polyether dicarboxylic acids is reported. The influence of polyether chain length and of terminal carboxylic acid group variation upon extraction selectivity and efficiency is assessed. In the competitive extraction of concentrated magnesium, calcium, strontium and barium chloride solutions, one complexing agent exhibits pronounced selectivity for barium with Ba/sup 2 +//S/sup 2 +/ = 50, Ba/sup 2 +//Ca/sup 2 +/ = 250, and no detectable Mg/sup 2 +/ extraction. 20 references, 3 figures, 1 table.

• Research Organization: Texas Tech Univ., Lubbock
• DOE Contract Number: AS05-80ER10604
• OSTI ID: 5493714
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 57:8; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ALKALINE EARTH METALS
AQUEOUS SOLUTIONS
BARIUM
CALCIUM
CARBOXYLIC ACIDS
CHLORIDES
CHLORINATED ALIPHATIC HYDROCARBONS
CHLORINE COMPOUNDS
CHLOROFORM
DATA
DISPERSIONS
ELEMENTS
ETHERS
EXPERIMENTAL DATA
EXTRACTION
HALIDES
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
INFORMATION
MAGNESIUM
METALS
MIXTURES
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SOLVENTS
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SOLVENTS
STRONTIUM