HPAA/2-Hydroxy Phosphonoacetic Acid
Versatile water treatment agent for scale and corrosion control.
(HPAA) 2-Hydroxy Phosphonoacetic Acid
- CAS Number: 23783-26-8
- UN NO.: 3265
- EINECS NO.: 245-822-4
- Molecular Formula: C2H5O6P
- Purity (%): available in various purity levels, such as 50%
- Appearance: dark umber liquid
- Package: 250KGS/DRUM or 1250KGS/IBC, or as customers' requirement.
- Other Name: HPAA, Hydroxyphosphonoacetic acid, Phosphonoglycolic acid, Glycolic acid
2-Hydroxy Phosphonoacetic Acid Specification
| ITEMS | SPECIFICATIONS |
| Solid content % | 50.0 min |
| Phosphorous acid(as PO33-)% | 1.5 max |
| Phosphorous acid(as PO43-)% | 3.0 max |
| pH(1% solution) | 3.0 max |
| Density (20℃)g/cm3 | 1.30 min |
2-Hydroxy Phosphonoacetic Acid for Sale
Stronger Protection: HPAA offers 5-8 times better corrosion inhibition than HEDP or EDTMP. Less dosage, better results.
Excellent Chemical Stability: It is hard to hydrolyze. Resists both acid and alkali. Stable and reliable in tough conditions.
Works Well with Zinc: HPAA improves zinc solubility. When used with zinc salt, the corrosion protection is even stronger.
Reduces Iron Fouling: It helps stop iron deposits, improves heat transfer efficiency, and lowers system maintenance costs.
Eco-Friendly Choice: HPAA is biodegradable and suitable where molybdate discharge is strictly regulated.
Strong Metal Chelation: Effectively binds with calcium, iron, copper, and other metal ions to prevent scale formation.
What is 2-Hydroxy Phosphonoacetic Acid Used for
For Water Treatment: It serves as an effective corrosion and scale inhibitor in circulating cooling water systems, especially suitable for conditions with high hardness, alkalinity, and temperature.
In Boiler Systems: It is used to prevent scale formation and corrosion in low to medium-pressure boilers.
In the Petroleum Industry: It is applied in oilfield water flooding and refinery systems to control scaling and corrosion.
For Industrial Cleaning: It acts as a chelating agent and scale inhibitor in cleaning formulations for equipment such as heat exchangers and membranes.
In the Textile Industry: It can be used as a stabilizer and chelating agent in specific wet processing steps.
FAQ of 2-Hydroxy Phosphonoacetic Acid
Yes, it is corrosive (UN 3265, Class 8). It can irritate skin and eyes. Always wear gloves, goggles, and protective clothing. If contact happens, flush with plenty of water immediately.
Yes. Our HPAA meets HG/T 3926 standard (latest version). We can also discuss custom specification requirements for your local market.
HPAA is specially designed for low hardness, low alkalinity, and highly corrosive water . It performs better than HEDP in aggressive, soft water environments common in southern regions.
It is available in 250KGS/DRUM or 1250KGS/IBC, with flexible packaging solutions provided to meet specific customer requirements.
Store HPAA in its original, tightly sealed container in a cool, dry, and well-ventilated area, protected from freezing, extreme heat, and direct sunlight.
2-Hydroxy Phosphonoacetic Acid Suppliers
HOOCHEMTEC: Your Professional HPAA Partner
We are a direct manufacturer and exporter of 2-Hydroxy Phosphonoacetic Acid (HPAA) with years of experience in the water treatment chemical industry.
Quality You Can Trust:
We test every batch in our own laboratory. Each shipment comes with a Certificate of Analysis (CoA) so you know exactly what you receive. No guesswork. No surprises.
Safe Export & Compliance:
HPAA is classified as UN 3265 (Corrosive, Class 8) . We handle all dangerous goods documentation professionally. You get MSDS, transport certificates, and full customs clearance support.
Flexible & Customer-Focused:
We offer 250KGS/DRUM or 1250KGS/IBC. Need a custom package? Just ask. We also provide free samples for pre-order testing and qualification.
Responsive Support:
Our team replies quickly. We speak your language — clear, simple, and honest. Whether you are a distributor or an end-user, we are here to help.
Choose HOOCHEMTEC for reliable HPAA quality and a partnership you can count on.
