Diethylhexylphosphoric acid

However, a number of organophosphorus compounds are efficient extractants as they and their complexes are very soluble in organic solvents. The most important of these are monobasic diethylhexylphosphoric acid (HDEHP) and dibutylphosphoric acid (HDBP). The actinide MO + ions are very effectively extracted by these reagents as are the actinide (IV) ions. 

Note Abbreviations TOPO, trioctylphosphine oxide DTPA, diethylenetriaminepentaacetic acid DEHPA, diethylhexylphosphoric acid. 

Diethylhexylphosphoric acid -162,191 Di-2-ethylhexyl phthalate -104 Di-2-ethylhexyl sebacate 287, 288 Diethylhydrazine - 863... 

The metal complexes formed by the anionic organophosphorus extractants are, on the other hand, very soluble in organic solvents. Such compounds have therefore been used for various technical processes. Most important is the monobasic diethylhexylphosphoric acid (HDEHP), but dibutylphosphoric acid (DBP) has also been widely applied [103,155]. Some data illustrating the properties of these extractants are collected in Table 21.19. 

---