Aluminum phosphide corrosion inhibitor is a commonly used corrosion inhibitor, mainly composed of aluminum phosphide and other auxiliary components. Aluminum phosphide has good corrosion inhibition performance in water, forming a protective phosphate film that covers the metal surface, thereby slowing down the corrosion rate of the metal.
The working principle of aluminum phosphide corrosion inhibitor includes the following aspects:
Phosphate film formation: The phosphorus element in aluminum phosphide reacts with oxygen in water and metal surfaces to form a stable phosphate film. This layer of film can block the contact between metal and the external environment, reducing corrosion on the metal surface.
Bonding effect: Phosphate films can bind to metal surfaces through adsorption and bonding, forming a h3 protective layer. This type of bonding can prevent the flow of electrons and ions on the metal surface, thereby slowing down the electrochemical reaction rate of the metal.
Relaxing acidity and alkalinity: Phosphate films have a certain degree of acid solubility, which can neutralize acidic substances in water, reduce the acidity of water, and thus reduce metal corrosion.
Aluminum phosphide corrosion inhibitors HEDP are widely used in cooling water systems, boiler water treatment, industrial circulating water systems, and other fields. When using aluminum phosphide corrosion inhibitor, it is necessary to correctly add and control the dosage according to the specific water quality and equipment requirements, and according to the instructions provided by the manufacturer. In addition, regular monitoring of water quality and system status should be carried out, and adjustments and maintenance should be made according to the actual situation to ensure the effectiveness of corrosion inhibition and the normal operation of the system.