Diisooctylphosphinic acid (DiOPA) may be used in the following studies:As the surface passivating ligand in the synthesis of magic-sized CdSe and CdTe nanocrystals.As extractant in the extraction of Indium(III) from sulfate solutions.As ligand to investigate the solubility of four copper ligand systems in supercritical CO2.As acid ligand for the Supercritical fluid extraction (SFE) of divalent metals (Zn2+, Cu2+, Pb2+, Cd2+and Cr3+) from sand and fly ash using CO2.