Used in analytical chemistry for mobile phase preparation in reversed-phase chromatography extraction processes and as a corrosion inhibitor in industrial formulations.

It functions as an ion-pairing reagent in ion chromatography and HPLC separations particularly for analyzing anions and improving peak shapes of basic compounds.

Ammonium dibutyl phosphate (CAS 38491-08-6) is the ammonium salt of dibutyl phosphoric acid with molecular formula CHNOP and molecular weight 227.24 gmol typically appearing as a white to off-white solid or viscous liquid.