Di-(2-ethylhexyl)phosphoric acid
![Di(2-ethylhexyl)phosphoric acid](/Images/godic/202501/08/DEHPA5001.png")
Di-(2-ethylhexyl)phosphoric acid (DEHPA or HDEHP) is an organophosphorus compound with the formula (C8H17O)2PO2H. The yellow liquid is a diester of phosphoric acid and 2-ethylhexanol. It is used in the solvent extraction of uranium as well as the rare earth metals.