For more information Use: Plant inhibitor content: 50 Model: HPAA chemical composition: HPAA 2- hydroxyphosphonoacetic acid Brand: Kerry Chemical Type: Corrosion Inhibitor Appearance: Dark brown liquid Content of effective substances: 50 PH value of the use : ≤3.0 Dosage: HPAA performance organic corrosion and scale inhibitors and low molecular weight polymer composition along fine. HPAA and zinc salt better. CAS: 23783-26-8