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  • Jinan Forever Chemical Co., Ltd.

  •  [Shandong,China]
  • Business Type:Manufacturer , Service
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , Other Markets , West Europe , Worldwide
  • Exporter:21% - 30%
  • Certs:ISO9001
  • Description:1-Hydroxy Ethylidene-1,1-Diphosphonic,HEDP, C2H8O7P2,2809-21-4,Etidronsaeure,Acetodiphosphonic acid,ethane-1-hydroxy-1,1-diphosphonic acid,EHDP
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Home > Products > 1-Hydroxy Ethylidene-1,1-Diphosphonic(HEDP) CAS NO:2809-21-4

1-Hydroxy Ethylidene-1,1-Diphosphonic(HEDP) CAS NO:2809-21-4

Product categories of 1-Hydroxy Ethylidene-1,1-Diphosphonic(HEDP) CAS NO:2809-21-4, we are specialized manufacturers from China, 1-Hydroxy Ethylidene-1, 1-Diphosphonic suppliers/factory, wholesale high-quality products of HEDP R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
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(1-Hydroxyethane-1 1-diyl)diphosphonic acid CAS NO.2809-21-4

Model No. : 2809-21-4

Product Name 1 Hydroxyethylidene 1 1 diphosphonic acid Synonyms ETHANE 1 HYDROXY 1 1 DIPHOSPHONIC ACID 95 1 Hydroxyethylidene biphosphonic acid Hydroxyethylidene Diphosphonic acid HEDP 1 Hydroxyethylidene 1 1 diphosphonicacid min 95 HEDP 1...

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1-Hydroxy Ethylidene-1,1-Diphosphonic(HEDP)

Description: 1-Hydroxy Ethylidene-1,1-Diphosphonic(HEDP)

Physical and chemical property: crystal powder, suitable for usage in winter and freezing districts.

Molecular Formula: C2H8O7P2

CAS No:2809-21-4

UN No:3265

CLASS: 8.1





Clear, Colorless to pale yellow aqueous solution

White crystal powder

Active content (HEDP)%

60.0 min

90.0 min

Active content (HEDP·H2O)%


98.0 min

Phosphorous acid (as PO33-)%

1.0 max

0.8 max

Phosphoric acid (as PO43- )%

0.6 max

0.5 max

Chloride (as Cl-)%

0.01 max

0.01 max

pH (1% water solution)

2.0 max

2.0 max

Density (20℃)g/cm3

1.40 min


Fe, mg/L

10.0 max

5.0 max

Colour APHA (Hazen)

10.0 max


Ca sequestration (mg CaCO3/g)

500.0 min

Packed in 250kg plastic drum,20fcl=20mts.

Application: HEDP is used as scale inhibitor, deflocculant, sequestrant, water stabilizer in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc under condition of high temperature and high pH value. HEDP is also used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent.

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