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2809-21-4 1-Hydroxyethylidene-1,1-diphosphonic acid

product Name 1-Hydroxyethylidene-1,1-diphosphonic acid
CAS No 2809-21-4
Synonyms 1-Hydroxyethane-1,1-diphosphonic Acid; Etidronic acid; HEDP; HEDPA; Hydroxy Ethylidene-1,1-Diphosphonic Acid; 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid; 1-Hydroxyethylidene diphosphonic Acid; 1-hydroxy ethylene-1,1-diphosphonic acid; 1-HYDROXYETHYLIDENEDI(PHOSPHONIC ACID); disodium (1-hydroxyethane-1,1-diyl)bis[hydrogen(phosphonate)]; (1-hydroxyethane-1,1-diyl)bis(phosphonate); Hydroxyethylidenedi(phosphonic acid); Hydroxyethylidine Diphosphonic Acid; HydroxyEthylidene Diphosphonic acid; HEDP (Hydroxyethylidene Diphosphonic Acid)
Molecular Formula C2H8O7P2
Molecular Weight 201.9987
InChI InChI=1/C2H8O7P2/c1-2(3,10(4,5)6)11(7,8)9/h3H,1H3,(H2,4,5,6)(H2,7,8,9)/p-4
EINECS 220-552-8
Molecular Structure 2809-21-4 1-Hydroxyethylidene-1,1-diphosphonic acid
Melting point 198~199℃
Boiling point 578.8°C at 760 mmHg
Flash point 303.8°C
Vapour Pressur 8.34E-16mmHg at 25°C

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Description

Molecular Formula: C2H8O7P2CAS Number: 2809-21-4Description: Density: 1.42-1.48 g/ml at 20°CSpecificationAppearance: colorless or light yellow transparent liquidActive matter content: 58%-62%Phosphorous acid(as PO3): 4.0% maxPhosphoric acid(as PO4): 0.7% maxIron: 35ppm max pH(1% in water): 2 maxDensity: 1.42-1.48 g/ml at 20°C Chloride(as Cl): 1.0% maxColor(APHA): 150max.Viscosity(25°C): 35-41mm2/s

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