Adsorption of heteropolyphosphates of alkaline metals on iron surface

The physical and chemical properties of heteropolyphosphates of alkaline metals are studied as promising antiwear and antiscoring additives to plastic lubricating materials. Quantum-chemical analysis of the interaction of the heteropolyphosphates with iron surfaces provides insight into the processes that evolve in these compounds during friction. The mechanism of opening of the heteropolyphosphatic cycles and their transition into linear structures is studied.