2-Hydroxyphosphonoacetic acid (HPAA) is an important chemical substance that plays a vital role in water treatment.
HPAA can form stable complexes with hard water ions such as calcium and magnesium in water, thereby effectively preventing these ions from precipitating on the surface of equipment such as pipes and boilers, and avoiding the formation of scale. This scale inhibition is of great significance for ensuring the normal operation of equipment and extending its service life.
HPAA has excellent corrosion inhibition performance. It can form a protective film on the metal surface to slow down the corrosion rate of the metal. In the circulating cooling water systems of the steel, petrochemical, power and other industries, HPAA is used as a corrosion inhibitor to reduce the corrosion of metal equipment and increase the service life of the equipment. In particular, HPAA has a better corrosion inhibition effect on low-hardness and easily corrosive water in southern my country, and the effect is better when used in combination with zinc salts. Dispersion effect
HPAA also has a dispersing effect, which can disperse particulate matter in water in water to prevent it from precipitating and fixing on the metal surface. This helps keep the water clean and the equipment running properly.
HPAA can adjust the pH of water to keep it within the appropriate range, preventing the pH of the water from being too high or too low and causing damage to the equipment. This is essential for maintaining the stability of the water treatment system and extending the service life of the equipment.
HPAA is often used in combination with other organophosphorus agents or polymers to adapt to a wider range of water quality and treatment requirements. For example, HPAA can be used in combination with maleic anhydride-acrylic acid copolymer to improve its scale and corrosion inhibition effects.
