HEDP Cas: 2809-21-4

HEDP Cas: 2809-21-4

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Jiangyin Lanyu Chemical Co.,Ltd.

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Hydroxyethylidene Diphosphonic Acid (HEDP, CAS 2809-21-4), also known as 2-hydroxyethylidene-1,1-diphosphonic acid, is a widely used phosphonic acid-based chelating agent with applications spanning water treatment, oil and gas production, personal care, and industrial manufacturing. This multifaceted compound, recognized for its excellent sequestering and scale-inhibiting properties, plays a critical role in preventing mineral deposits and protecting equipment from corrosion.

HEDP (CAS 2809-21-4) functions by forming stable complexes with divalent metal ions (such as Ca²⁺, Mg²⁺, and Fe³⁺), effectively preventing the formation of calcium carbonate, calcium sulfate, and barium sulfate scales in water systems. Its high solubility (up to 50 g/L in water at 25°C) and broad pH tolerance (effective in acidic to neutral environments) make it ideal for use in boilers, heat exchangers, and cooling towers, where scale buildup can significantly reduce energy efficiency and equipment lifespan. Additionally, HEDP can dissolve existing scales, restoring system performance and reducing maintenance costs.

Beyond scale inhibition, HEDP (CAS 2809-21-4) is a versatile corrosion inhibitor that protects metal surfaces (e.g., steel, aluminum, copper) from oxidative damage caused by dissolved oxygen, chlorides, and other corrosive agents. In oil and gas applications, it is used to prevent scaling in pipelines and enhance the flow of hydrocarbons. In personal care products, it stabilizes formulations by sequestering metal ions that could otherwise degrade active ingredients.

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Jiangyin Lanyu Chemical Co.,Ltd.

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3 year

Address: Changzhou, China

Main Product: Benzyl triethyl ammonium chloride 56-37-1, Tetramethyl ammonium chloride 75-57-0, Tetrabutyl ammonium bromide 1643-19-2, ATMP 6419-19-8, HEDP 2809-21-4 , DTPMP-Na7 68155-78-2

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