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HEDP

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  Post Date: Dec 02,2016
  Expiry Date: Dec 02,2017
  Detailed Description: Cas No. :2809-21-4 1-Hydroxyethylidene-1,1-Diphosphonic Acid（HEDP）
Properties: HEDP is colorless or light yellow transparent liquid. It has good chemical stability, and shows excellent scale and corrosion inhibition effects under temperature 200. HEDP has good oxygen resistance, low toxicity and no pollution. It can form stable complex with many kinds of metal ions.
Usage: Widely used for water treatment scale and corrosion in all kinds of industries, and is used as a metal cleaning agent and complexing agent in the industry.
Technical Indicators: Meet the requirements of HG/T 3537-1999
Items Index
appearance colorless or light yellow transparent liquid
active component content (HEDP)% ≥50
phosphorous acid（as PO33）％ ≤20
phosphoric acid（as PO43-）％ ≤0.8
chloride（as CI-）％ ≤1.0
PH (1% solution) ≤2.0
density (25℃)g/cm3 1.34-1.48

Method of Use: In industrial chilled water system, the general dosage is 5-10ppm.
Packing and Storage: Plastic barrel packing, 30kg or 250kg per barrel. It should be stored in a shady place indoors, and the storage period is one year.

  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;
  Molecular Formula: C2H8O7P2
  Molecular Weight: 201.9987
  Molecular Structure: 2809-21-4 1-Hydroxyethylidene-1,1-diphosphonic acid

  Company: Zouping Yinghao Environmental Protection Technology Co., Ltd.     [ China ]        
  Contact: Cassie
  Tel: 0543-4738899
  Fax: 0543-4738899
  Email: howett_cassie@hotmail.com
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