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HEDP (Hydroxyethylidene Diphosphonic Acid) 60% Solution 90% Solid - High-Performance Scale & Corrosion Inhibitor for Water Treatment

Product Overview

HEDP (Hydroxyethylidene Diphosphonic Acid) is one of the most effective organic phosphonic acid scale and corrosion inhibitors. It exhibits excellent chelating ability and low threshold inhibition, making it a cornerstone of modern industrial water treatment programs.

Key Features & Advantages

1. Superior Scale Inhibition:​ Highly effective against carbonate and sulfate scales, especially under high hardness and high pH conditions.
2. Excellent Corrosion Control:​ Forms a stable protective film on metal surfaces, protecting carbon steel, copper, and their alloys.
3. High Temperature & Chemical Stability:​ Maintains efficacy at elevated temperatures and in the presence of chlorine, making it ideal for challenging environments.
4. Synergistic Effect:​ Works exceptionally well in combination with polymers (e.g., PAA, HPMA) and other phosphonates (e.g., ATMP, PBTCA) for enhanced dispersion and corrosion control.
5. “Low-Phosphorus” Formula:​ Environmentally preferred compared to inorganic phosphates due to higher stability and lower dosage requirements.

Typical Applications

1. Industrial cooling water systems (open & closed circuits)
2. Boiler water treatment and steam generation systems
3. Reverse Osmosis (RO) membrane antiscalant
4. Oilfield water flooding and refinery processes
5. As a chelant in textile processing and metal cleaning formulations.