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HEDP (Etidronic Acid)

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HEDP (Etidronic Acid)
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HEDP (Etidronic Acid)

Molekulýar formulaC2H8O7P2 CAS2809-21-4 Molekulýar agram206.03 g/mol
Sinonimler1-Hydroxyethylidene-1,1-diphosphonic acid, Etidronic Acid
Safety & Hazards (GHS) Danger
Corrosive Corrosive Irritant Irritant

⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).

HEDP is an organophosphonic acid supplied as an aqueous solution or solid. It acts as a scale inhibitor, corrosion inhibitor and chelating agent, and is stable at high temperatures and pH.
- Water Treatment: Scale and corrosion inhibitor in cooling water, boilers and circulating systems. - Detergents & Cleaners: Sequestrant for calcium, magnesium and metal ions. - Textile Industry: Peroxide bleaching stabiliser and chelating agent. - Metal Treatment: Used in electroplating and metal surface cleaning baths.
AppearanceWhite odorless powder; supplied as aqueous solution or solid
Molecular FormulaC2H8O7P2
Molecular Weight206.03 g/mol
Melting Point198–199 °C
IUPAC Name(1-hydroxy-1-phosphonoethyl)phosphonic acid
Molekulýar formulaC2H8O7P2
Molekulýar agram206.03 g/mol
SMILESCC(O)(P(=O)(O)O)P(=O)(O)O
InChIKeyDBVJJBKOTRCVKF-UHFFFAOYSA-N
  • H302 Harmful if swallowed
  • H318 Causes serious eye damage

⚠️ For information only; not a substitute for the official SDS.

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