The action and texture of hydrochloric acid pickling corrosion inhibitor

Hydrochloric acid pickling corrosion inhibitor is a type of pickling agent that undergoes chemical reactions on metal surfaces to remove surface characterization and rust. Its main mechanism of action includes the following aspects:

Electrostatic attraction: Metal surfaces usually have a positive charge, while hydrogen ions in hydrochloric acid pickling inhibitors have a negative charge. There will be electrostatic attraction between these two charges, causing hydrogen ions in the corrosion inhibitor to be adsorbed onto the metal surface.

Dissolution reaction: Hydrogen ions in hydrochloric acid pickling corrosion inhibitors react chemically with oxides or hydroxides on metal surfaces, forming products of salt and water. These products can be dissolved and removed, resulting in a smoother and brighter state on the metal surface.

Film formation: Some components in hydrochloric acid pickling inhibitors can form a protective film on the metal surface, thereby reducing the sensitivity and corrosion tendency of the metal to the environment. These films can prevent the metal from being oxidized and corroded again.

Neutralization reaction: Hydrogen ions in hydrochloric acid pickling corrosion inhibitors HEDP will undergo a neutralization reaction with alkaline substances on the metal surface, resulting in a relatively neutral state on the metal surface. This is conducive to the subsequent processing processes, such as electroplating, spraying, etc.

It should be noted that when using hydrochloric acid pickling corrosion inhibitors, the operation should be strictly carried out according to the instructions, and protective measures should be taken to avoid damage to human safety and the environment.