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Effect of multiple acid pickling corrosion inhibitors

Posted on September 5, 2023September 5, 2023 By admin No Comments on Effect of multiple acid pickling corrosion inhibitors

Pickling corrosion inhibitor is a chemical treatment agent added during the pickling process, whose main function is to reduce acid damage to metal surfaces, reduce corrosion rate, and achieve a safer and more effective pickling process. The following are the multiple functions of acid pickling corrosion inhibitors:

Corrosion protection: During the pickling process, the acid solution has a corrosive effect on the metal surface, which can easily cause the metal to be corroded, damaged, or produce a large amount of hydrogen gas in the pickling solution. Acid pickling corrosion inhibitors can form a protective film that covers the metal surface, reducing direct contact between acid and metal, thereby preventing or reducing metal corrosion.

Cleaning and Decontamination: Acid pickling corrosion inhibitors contain some surfactants, which have good cleaning performance and can effectively remove oxides, rust, grease, and other pollutants from metal surfaces, restoring the metal surface to a relatively clean state.

Increase pickling efficiency: Pickling corrosion inhibitors can change the chemical properties of the pickling solution and reduce the corrosion rate of the acid on metal surfaces. In this way, the pickling process can extend the residence time of metals in the pickling solution, improve the pickling efficiency, and better remove the oxide layer and pollutants on the metal surface.

Control hydrogen production: During the pickling process, the metal reacts with the acid to produce hydrogen gas. Excessive accumulation of hydrogen gas may cause bubbles, splashes, or other safety hazards. Acid pickling corrosion inhibitors help control the generation of hydrogen gas and reduce safety risks by slowing down the corrosion of metals by acids.

It should be noted that when using acid pickling corrosion inhibitors, the correct usage method and concentration should be followed according to the specific situation to ensure safe operation and achieve the expected cleaning and corrosion inhibition effect. At the same time, necessary safety measures should be taken during the pickling process, such as wearing personal protective equipment, ventilation, etc.

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