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Highly effective chelator for multivalent metal ions including Ca²⁺, Mg²⁺, Fe³⁺, and Cu²⁺ under alkaline conditions.
Excellent thermal and hydrolytic stability across a broad pH range (pH 2–12), ensuring long-term performance in demanding systems.
Low toxicity profile and favorable environmental compatibility, supporting compliance with EU REACH and global water treatment regulations.
Strong scale inhibition capability—particularly against calcium carbonate, calcium sulfate, and barium sulfate deposits.
Synergistic compatibility with common biocides, dispersants, and other phosphonates in formulated water treatment programs.
Cooling water systems (open- and closed-loop) for industrial and HVAC applications.
Reverse osmosis (RO) and nanofiltration (NF) membrane antiscalant formulations.
Boiler water treatment programs requiring non-phosphate, low-phosphorus alternatives.
Oilfield scale inhibition in produced water handling and injection systems.
Industrial cleaning and metal surface pretreatment solutions where controlled metal ion sequestration is critical.
| Chemical Type | 1-Hydroxyethylidene-1,1-diphosphonic acid (HEDP) derivative, phosphonate-based chelating agent |
| Product Form | Aqueous solution (typically supplied as ~50% active ingredient) |
| Appearance | Clear, colorless to pale yellow liquid |
| pH (1% aqueous solution) | 1.8–2.5 |
| Density (at 20°C) | 1.25–1.30 g/cm³ |
| Active Content (as HEDP equivalent) | ≥48.0% w/w |
| Solubility | Completely miscible with water in all proportions |
| Primary Applications | Scale and corrosion inhibition in industrial water treatment |
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E-mail: wangxingqiang@ericwchem.com
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