TEL: +86-632-3671188
FAX:+86-632-3671189
E-mail:export@krchemical.com
ADD:No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China
Industrial cooling water systems face a persistent “double dilemma” – the simultaneous threat of scale deposition and metal corrosion. Scale buildup on heat exchanger surfaces reduces thermal efficiency and increases energy consumption, while corrosion gradually weakens pipelines and equipment, leading to costly downtime and premature replacement. Traditional water treatment chemicals often address only one of these challenges, forcing plant operators to juggle multiple products with limited synergy.
Introducing HPAA: The Next-Generation Organophosphonate
Shandong Kairui Chemistry Co., Ltd. offers 2-Hydroxy Phosphonoacetic Acid (HPAA) , a high-performance organophosphonic acid that represents a significant evolution in water treatment chemistry. Unlike traditional phosphonates such as HEDP or ATMP, which rely primarily on simple threshold inhibition, HPAA features a unique tri-functional molecular architecture containing phosphonic, carboxylic, and hydroxyl groups. This hybrid structure grants it superior performance in both scale inhibition and corrosion protection, particularly in demanding environments where conventional inhibitors fail.
Unmatched Corrosion Inhibition Performance
HPAA is primarily a cathodic corrosion inhibitor that forms a thin, protective film on metal surfaces. Its corrosion inhibition ability is 5 to 8 times better than that of HEDP and EDTMP. When formulated with zinc salts, HPAA exhibits a potent synergistic effect, significantly enhancing corrosion protection for carbon steel in cooling water systems. This makes HPAA particularly suitable for low-hardness, corrosive water conditions commonly found in southern regions.
Advanced Scale Inhibition Through Lattice Distortion
HPAA operates at sub-stoichiometric concentrations (mg/L levels) through a sophisticated lattice distortion mechanism. The HPAA anions adsorb onto the active growth sites of micro-crystals, disrupting the regular stacking of calcium and carbonate ions. This forces crystals to grow in distorted, non-adherent shapes that remain suspended in the bulk fluid rather than forming hard scale on heat transfer surfaces. HPAA effectively controls calcium carbonate, calcium sulfate, and calcium phosphate scale at low dosage levels.
Key Product Specifications (Compliant with HG/T 3926-2007)
| Parameter | Specification |
|---|---|
| Appearance | Dark brown liquid |
| Solid Content | ≥ 50.0% |
| Total Phosphonic Acid (as PO₄³⁻) | ≥ 25.0% |
| Phosphoric Acid (as PO₄³⁻) | ≤ 1.5% |
| Phosphorous Acid (as PO₃³⁻) | ≤ 3.0% |
| Density (20℃) | ≥ 1.30 g/cm³ |
| pH (10g/L solution) | ≤ 3.0 |
Trusted Across Critical Industries
HPAA is widely used as a cathode corrosion inhibitor and scale inhibitor in circulating cooling water systems across steel & iron, petrochemical, power generation, and pharmaceutical industries. Its chemical stability, resistance to hydrolysis and acid/alkaline attack, and non-toxic, non-polluting nature make it a reliable choice for demanding industrial applications.
Contact Shandong Kairui Chemistry Co., Ltd.
TEL: +86-632-3671188
E-mail: export@krchemical.com
ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China