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Derivatives of imidopyrophosphoric acids as extractants. Part I. The preparation and fundamental constants of tetraalkylimidopyrophosphoric acids

Journal Article · · Solvent Extraction and Ion Exchange; (United States)
Improved methods for the preparation of imidotetraalkylpyrophosphates are reported. The dissociation constant of the water soluble tetraethyl analogue was determined by potentiometric titration. The values for the partition constant and aggregation constant of the tetradodecyl analogue were determined by two phase EMF potentiometric titration of which the data were processed through a sophisticated general optimization technique. The application of this method also made it possible to obtain a species distribution curve of the organic phase in terms of variation of pH in the aqueous phase. 17 refs., 7 figs., 4 tabs.
OSTI ID:
6594420
Journal Information:
Solvent Extraction and Ion Exchange; (United States), Journal Name: Solvent Extraction and Ion Exchange; (United States) Vol. 10:5; ISSN 0736-6299; ISSN SEIEDB
Country of Publication:
United States
Language:
English