HEDP

Post Date:
Oct 10,2013
Expiry Date:
Apr 08,2014
Detailed Description:
Cas No. :2809-21-4 Price:O USD Metric Tons
Payment Method: T/T in advance
Chemical Name: 1-Hydroxyethylidene-1, 1-diphosphonic Acid

Abbreviation: HEDP

Molecular Formula: C2H8O7P2

Molecular Weight: 206

CAS Number: 2809-21-4

Specification:
Appearance Clear colourless to pale tan liquid, free from foreign matter.
Odour Slight to none
Active Acid (%) 59.5 - 61.0
pH (1% solution at 20°C) w/v 2.0 max
pH (1% solution at 20°C) v/v 2.5 max
Sequestrant value (mgCaCO3/g ) 400 min
Iron, as Fe (ppm) 30.0 max
Phosphorous acid as H3PO3
phosphoric acid as H3PO4 (%) 4.0 max
Orthophosphate as PO43- (%) 0.5 max
Viscosity at 25°C (mm2/s) 35.0 - 41.0
Specific Gravity at 20/20°C 1.440 - 1.455
Chloride (as Cl-, %) 1.0 max
Colour (APHA) 30 max
Arsenic content (As ppm) 1.0 max
CAS Registry Number:
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;
Molecular Formula:
C₂H₈O₇P₂
Molecular Weight:
201.9987
Molecular Structure:

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