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Phosphonates Antiscalants, Corrosion Inhibitors and Chelating Agents
Salts of Phosphonates
Polycarboxylic Antiscalant and Dispersant
Biocide and Algicide
Reverse Osmosis Chemicals
Built Scale & Corrosion Inhibitors and Pretreatment Filming Agents
Corrosion Inhibitors & Oxygen Scavenger
Surfactant & Others

what is hedp

HEDP most commonly refers to 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid a widely used organophosphonic compound with excellent chelating, scale-inhibiting, and corrosion-inhibiting properties, and it also has other meanings in different fields. The details are as follows:

Basic Information

  • Chaical Formula: C2H8O7P2

  • CAS Number: 2809-21-4.

  • Molecular Weight: 206.02

  • Physical State: It is usually a Clear, colorless to pale yellow aqueous solution or a white crystalline powder.

  • Solubility: Highly soluble in water, methanol, and ethanol.

Core Properties and Mechanisms

  1. Chelation: Strongly binds to metal ions like Ca²⁺, Mg²⁺, Fe³⁺, Cu²⁺, forming stable water-soluble complexes to prevent precipitation and scale formation.

  2. Scale Inhibition: Efficiently inhibits calcium carbonate, calcium sulfate, and other mineral scales, even at high taperatures (up to 250°C) and alkaline conditions, with good threshold effects and stability against hydrolysis and oxidation.

  3. Corrosion Inhibition: Forms a protective film on metal surfaces, dissolves oxides, and resists corrosion in systas with chlorine or harsh pH, outperforming many other organophosphates.

HEDP sample

hedp sample

Kairui Chaical is a professional manufacturer of HEDP. The production facilities and equipment are shown in the figure below.

hedp workshop

Product Details:https://www.kairuiwater.com/hedp.htm

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ADD:Xuecheng Chemical Industrial Park,Zaozhuang City, Shandong Province, China