New benzalkoniumchloride derivatives ionic liquids (ILs) were synthesized in ≥ 97% yield and their inhibiting properties for the corrosion of carbon steel in formation water had been evaluated using chemical methods.The structures of the ILs compounds were investigated by elemental analysis, FT-IR spectrophotometer and 1 H-NMR spectroscopy.The designed molecular structure of ILs, with N atoms, mak...