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1-Hydroxyethylidene-1,1-Diphosphonic Acid

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  Post Date: Oct 11,2013
  Expiry Date: Apr 09,2014
  Detailed Description: Cas No. :2809-21-4
Chemical name:1-Hydroxyethylidene-1,1-Diphosphonic Acid(HEDP)
Abbreviation: HEDP
Molecular Formula: C2H8O7P2
Molecular Weight: 206
CAS Number: 2809-21-4
Application Notes: Noted for its excellent CaCO3 scale inhibition and chlorine stability.
Recommended Uses: Cooling water treatment, boiler treatment, I & I cleaners, swimming pool stain prevention, metal ion control
Typical Properties:
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(CaCO3)mg/g as product at PH 11-12
500 min
PH(1% solution)@20°C
2.0 max
Density at 20°C,g/cm3
1.440 min
Iron, as Fe (ppm):
35.0max
Colour APHA (Hazen):
80 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: 2809-21-4 1-Hydroxyethylidene-1,1-diphosphonic acid

  Company: Henan Qingshuiyuan Technology CO., Ltd     [ China ]        
  Contact: Yanping Zhou
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