Features of zinc passivation by sodium dodecylphosphontate in a neutral aqueous solution

• Sodium dodecylphosphonate (С12PNa2) is chemosorbed on zinc surface and forms passive films that increase zinc durability. • The adsorption activity of С12PNa2 is the most pronounced on an oxide-free zinc surface. • The possibility of adsorption passivation of zinc with С12PNa2 has been shown. • Th...
Ausführliche Beschreibung

• Sodium dodecylphosphonate (С12PNa2) is chemosorbed on zinc surface and forms passive films that increase zinc durability. • The adsorption activity of С12PNa2 is the most pronounced on an oxide-free zinc surface. • The possibility of adsorption passivation of zinc with С12PNa2 has been shown. • The protective layer formed in a С12PNa2 solution on zinc consists of the [С12PZn] complex (P:Zn = 1:1), ZnO and Zn(OH)2. • The composition of phosphonate layers depends on the initial state of zinc surface and determines their protective ability. Ausführliche Beschreibung