HEDP

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HEDP
Posting date : Jan 19, 2010
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29-
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Chemical Name: 1-Hydroxyethylidene-1, 1-diphosphonic Acid Abbreviation: HEDP(60min) CAS Number: 2809-21-4 Molecular Formula: C2H8O7P2 Molecular Weight: 206 Application Notes: Noted for its excellent CaCO3 scale inhibition and chlorine stability is based on hydroxyl ethylidene (1, 1-diphosphonic acid) and is approved for applications in which boiler steam comes in contact with food. Recommended Uses: Cooling water treatment, boiler treatment, I & I Cleaners, swimming pool, stain prevention, metal ion control. Specification: Appearance Water white to pale yellow liquid Active Acid (%) 60.0 min Phosphorous acid as PO33- (%) 2.0 max Phosphorous acid as PO43- (%) 0.8 max Chloride (as Cl-, %) 0.5 max Sequestrant value (mgCaCO3/g ) 500 min pH(1% solution) 2.0 max Density at 20°C, g/cm3 1.440 min Iron, as Fe (ppm) 35.0max Colour APHA (Hazen) 80 max

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