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Solvent Extraction and Ion Exchange Volume 8, 1990 - Issue 1
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NOTE

CORRELATION OF THE EXTRACTION OF STRONTIUM NITRATE BY A CROWN ETHER WITH THE WATER CONTENT OF THE ORGANIC PHASEFootnote*

E. P. Horwitz Chemistry Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois, 60439
,
M. L. Dietz Chemistry Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois, 60439
&
D. E. Fisher Chemistry Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois, 60439
Pages 199-208 | Published online: 27 Apr 2007
 
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Abstract

A simple correlation has been observed between the extraction of strontium nitrate from nitric acid solution by cis-dicyclohexano-18-Crown-6 dissolved in a variety of oxygenated, aliphatic diluents and the molarity of water present in the organic phase. This correlation is attributed to the extraction of the hydrated nitrate ion and its solvation by the diluent, facilitated by the high concentration of dissolved water. Of the solvents studied, ketones yield the largest values of the extraction constant for a given water content, although C5 and C6 alcohols give the highest overall values.

Notes

Work performed under the auspices of the Office of Basic Energy Sciences, Division of Chemical Sciences, U. S. Department of energy, under contract number W-31 -109-ENG-38

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