Three-phase extraction from solutions HCl diantipirilalkanami differs from three-phase extraction from solutions HSCN, HNO_{3, Hl} the maintenance of water in the third phase.

The third phase in system H₂ HCl diantipirilgeptan (DAG) C₆P₆ arises at the certain initial acidity of a water solution which provides transformation of the basis into salt. In a third phase it is capable extractions over stechiometric quantity, more than 6 moth HCl on moth DAG from a solution concentrated HCl. Water appeared the basic component of the third phase with moting shares up to 0,86, therefore the third phase should be counted not the second organic, and the second water phase. On share DAG it is necessary 40,0-45,0% of weight of the third phase and less than 1,0% of weight of water and organic phases that testifies to a high degree concentration DAG in the third phase.