Abstract

The effects of LiOH, Na2MoO4, and BTA on the corrosion behaviors of copper and copper-nickel alloy in 60% LiBr solution was studied by AC impedance measurements. Results indicated that LiOH, BTA, and Na2MoO4 could inhibited the corrosion of copper and copper-nickel alloy in LiBr solution respectively. When they were used together, the inhibition efficiency was higher than that of used one of them. They behaved a synergistic effect on inhibiting the corrosion of copper and copper-nickel alloy in 60% LiBr solution. It presented that when the concentration of LiOH, Na2MoO4 and BTA was 0.10mol/L, 150mg/L and 150mg/L, respectively, they behaved the highest inhibition efficiency on the corrosion of copper and copper-nickel alloy in 60% LiBr solution.

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