EXTRACTION OF Ca(II), AND Ba(II) BY ACIDIC ESTERS OF PHOSPHORUS OXY ACIDS
The extraction of Ca(III), Sr(II), and Ba(II) from aqueous mineral acid, in the presence and absence of the corresponding sodium salt, into xylene solutions of (GO)/sub 2/PO(OH), G = 2-ethyl hexyl and para (1, 1,3,3 tetramethyl butyl) phenyl, and of (GO)G'PO(OH), G = n-octyl and G' = phenyl and chloro methyl, was investigated radiometrically. The distribution ratio, K, was found to be inversely secondpower dependent upon the hydrogen ion concentration in the equilibrated aqueous phase. The dependency of K upon the concentration of extractant in the equilibrated xylene phase was found to be 2.5-power for Ca and Sr and 3.0-power for Ba in systems involving bis STApara (1,1,3,3 tetramethyl butyl) phenyl! phosphoric acid or n-octyl hydrogen chloromethyl phosphonate; 3.0- power for Ca, Sr, and Ba in systems involving n-octyl hydrogen phenyl phosphonate; and 3.0-power for Ca (Sr and Ba not proved) in systems involving bis(2ethyl hexyl) phosphoric acid. The effect of structural differences in the extractants is discussed, and the extraction of alkaline earths (III) is compared with that of Pm(III) and Cm(IIII). (auth)
- Research Organization:
- Argonne National Lab., Ill.
- NSA Number:
- NSA-16-031680
- OSTI ID:
- 4777152
- Journal Information:
- J. Inorg. & Nuclear Chem., Journal Name: J. Inorg. & Nuclear Chem. Vol. Vol: 24
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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Related Subjects
ALKYL RADICALS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CHEMISTRY
CHLORINATED HYDROCARBONS
CONCENTRATION
CURIUM COMPOUNDS
DISTRIBUTION
DOSEMETERS
ESTERS
MINERAL ACIDS
ORGANIC PHOSPHORUS COMPOUNDS
PHENYL RADICALS
PHOSPHORIC ACID
PROMETHIUM COMPOUNDS
QUANTITY RATIO
RADIATION DETECTORS
SEPARATION PROCESSES
SODIUM COMPOUNDS
SOLUTIONS
SOLVENT EXTRACTION
SOLVENTS
STRONTIUM COMPOUNDS
WATER
XYLENE