Neutralizer

The relationship between metals and pH value determines whether their oxides dissolve in acidic or alkaline solutions. When they can dissolve in acidic solutions, the lower the pH value, the more severe the corrosion. When they can dissolve in alkaline solutions, the higher the pH value, the more severe the corrosion. However, amphoteric metals are most stable within an appropriate pH range. Therefore, proper maintenance requires first understanding the material of the equipment before selecting the most suitable pH value.
Water containing dissolved oxygen, carbon dioxide, and corrosive gases will all cause system corrosion. Dissolved oxygen is the main factor leading to pitting. Carbon dioxide dissolves in water to form carbonic acid, lowering the pH value and increasing the concentration of hydrogen ions, which results in acidic corrosion. Corrosive gases are generally caused by air pollution or process leaks, such as carbon dioxide (CO₂), ammonia (NH₃), and hydrogen sulfide (H₂S), which can transform into corrosive salts within the system.