The extraction of nitrates by phosphorylated reagents—II The relative extraction rates of uranyl, cobaltous, and sodium nitrates with phosphate esters

Abstract

The partition of uranyl, cobaltous, and sodium nitrate between non-ionic phosphate esters and water has been measured, and the deviations from ideality which occur at high nitrate concentrations in the organic phase have been used to obtain solvation numbers for the extracted salts. With tri- n-butyl phosphate (TBP), the extracted species are the di-solvates are also formed between uranyl nitrate and weak phosphate ester extractants such as diphenyl butyl and triphenyl phosphates.