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The quaternary ammonium salt-type tetrameric surfactant with hydrocarbon chain length of 12 was synthesized, and characterized using FT-IR and 1H NMR. The inhibition efficiencies for N80 steel in 20% hydrochloric acid were studied by weight loss, potentiodynamic polarization method, electrochemical impedance spectroscopy at 25°C. The results obtained from weigh loss measurements show that it has good...
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