Best 2-Hydroxyphosphonocarboxylic Acid(HPAA) Cas: 23783-26-8

2-Hydroxyphosphonoacetic acid is a chemical substance with the molecular formula C2H5O6P, also known as HPAA. It appears as a brown transparent liquid and has a CAS accession number of 23783-26-8; The total phosphorus content of HPAA is much lower than that of traditional organic phosphines HEDP and ATMP, which is in line with the national "low phosphorus" environmental protection policy. The molecular structure of HPAA contains one hydroxyl group, one carboxyl group, and one phosphonic acid group. Compared with traditional organic phosphines HEDP and ATMP, it has good scale inhibition effect. HPAA combined with zinc salts can have a good corrosion inhibition effect, especially suitable for low alkali and low hardness corrosive water quality. Has good high temperature resistance, with a hydrolysis rate of only 8% under high temperature conditions of 200 ° C. HPAA is mainly used as a corrosion and scale inhibitor in open cooling water systems, and has good synergistic effects and compat…

Corrosion Inhibition Organic phosphonic acid Organic Phosphonic Acid Salt Polycarboxylic Acid Quaternary Ammonium Salts