Taizhou Green Land Chemical Co., Ltd.
Products
Contact Us
  • Contact Person : Ms. zhou nicky
  • Company Name : Taizhou Green Land Chemical Co., Ltd.
  • Tel : 86-523-86297969
  • Fax : 86-523-86296869
  • Address : Jiangsu,Taizhou,No1 suhong road hongqi farm hailing district taizhou city
  • Country/Region : China
  • Zip : 225311

HEDP great quality

HEDP great quality
Product Detailed
Related Categories:Water Treatment
CAS No. 2809-21-4 Molecular Formula: C2H8O7P2 Molecular weight: 206.03
CAS No. 2809-21-4 Molecular Formula: C2H8O7P2 Structural Formula:Molecular weight: 206.03
 

 

 

nombre en español:

Deutsch-Namen:

Product Name: 1-Hydroxyethylidene-1,1-diphosphonic acid 

Chemical Name:  1-Hydroxyethylidene-1,1-diphosphonic acid

Synonyms:  1-Hydroxyethane-1,1-diphosphonic acid; 1-Hydroxyethylidenedi(phosphonic acid); Dequest 2010; Etidronic acid; HEDP

CAS No:  2809-21-4

EINECS No: 220-552-8

Appearance:

Properties: HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions to form stable chelating compounds.It can dissolve the oxidized materials on these metals’ surfaces. HEDP shows excellent scale and corrosion inhibition effects under temperature 250°C. HEDP has good chemical stability under high pH value, hard to be hydrolyzed, and hard to be decomposed under ordinary light and heat conditions. Its acid/alkali and chlorine oxidation tolerance are better than that of other organophosphoric acids (salt). HEDP can react with metal ions in water system to form hexa-element chelating complex, with calcium ion in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

           The solid state of HEDP is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals. 

Specifications: 

itemsindex
AppearanceClear, Colorless to pale yellow aqueous solutionWhite crystal powder
Active content (HEDP)%58.0-62.090.0min
Phosphorous acid (as PO33-)%1.0 max0.8 max
Phosphoric acid  (asPO43- )%0.6 max0.5 max
Chloride (as Cl-) ppm100.0 max100.0max
pH (1% solution)2.0 max2.0 max
Density  (20°C)g/cm31.43-1.47-
Fe,mg/L10.0 max5.0 max
Colour APHA (Hazen)30.0 max-
Acetic acid %0.5 max 
Ca sequestration (mg CaCO3/g)500.0 min 

 

HEDP Package:  HEDP liquid: 200L plastic drum,IBC(1000L),customers’ requirement.

 

 

HEDP great quality



Copyright Notice @ 2008-2022 ECBAY Limited and/or its subsidiaries and licensors. All rights reserved.