Heterocyclic carbon steel acid pickling inhibitor and application thereof
A technology of pickling corrosion inhibitor and corrosion inhibitor, applied in the field of corrosion inhibitor production, can solve the problems of not adapting to the global environmental protection requirements, lack of market competitiveness, toxic and side effects of cleaning agents, etc., to prevent excessive metal Erosion, strong lasting ability, low dosage effect
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Embodiment 1
[0014] The pickling solution is dilute hydrochloric acid, the concentration is 0.1M, the amount of pickling solution is 100L, add 30g of methylene blue, and immerse the steel to be cleaned in the pickling solution for 4 hours at room temperature.
[0015] The highest corrosion inhibition efficiency obtained through experimental testing is 97%, which shows that it is an efficient cleaning agent.
Embodiment 2
[0017] The pickling solution is dilute hydrochloric acid, the concentration is 0.1M, the amount of pickling solution is 100L, add 15g of methylene blue, and immerse the steel to be cleaned in the pickling solution for 4 hours at room temperature.
[0018] The highest corrosion inhibition efficiency obtained through experimental testing is 94%, which shows that it is an efficient cleaning agent.
Embodiment 3
[0020] The pickling solution is dilute hydrochloric acid, the concentration is 0.5M, the amount of pickling solution is 100L, add 30g of methylene blue, and immerse the steel to be cleaned in the pickling solution for 4 hours at room temperature.
[0021] The highest corrosion inhibition efficiency obtained through experimental testing is 95%, which shows that it is an efficient cleaning agent.
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