1-Hydroxyethylidene-1, 1- Diphosphonic Acid (HEDP)

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1-Hydroxyethylidene-1, 1- Diphosphonic Acid (HEDP)
Posting date : Feb 14, 2011
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38-
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Synonym: HEDP. HEDPA, 1-Hydroxyethylidene diphosphonic Acid CAS No.: 2809-21-4 Molecular Weight: 206 Molecular Formula: C2H8O7P2 Structure: Usage: Used as scale inhibitor, deflocculant, sequestrant, water stabilizer in water treatment, pipeline, detergent under high temperature and high pH value Specifications Item limit Appearance pale yellow transparent liquid Active Content 60±2% Phosphorous Acid (as PO3) 2.0% max Chlorides (as Cl) 1.0% max Iron (as Fe) 20ppm max pH Value (1% aqueous) 2.0 max APHA 80 max Density( 20temperature), g/cm3 1.44~1.47 Acetic Acid 1.0% max Standard Packing: 290kgs net/200L drums Safety Information: Corrosive. Avoid contact with eyes and skin. UN 3265

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