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

Origin
CHINA
Minimum Order
1MT
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N/A
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Delivery
N/A
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Keywords
Product Description
CAS No. 2809-21-4

Molecular Formula: C2H8O7P2 Molecular weight: 206.02





HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP is 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. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.



Package and Storage:

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



HEDP solid: 25kg/bag,customers' requirement.



Storage for ten months in room shady and dry place.



Safety Protection:

Acidity, Avoid contact with eye and skin, once contacted, flush with water.



Synonyms:

HEDP;HEDP(A);HEDPA;



Etidronic Acid;



1-Hydroxy Ethylidene-1,1-Diphosphonic Acid;



Hydroxyethylidene-1,1-diphosphonicacid(HEDP);



1-Hydroxyethylidenediphosphonic Acid;



Hydroxyethylidene Diphosphonic acid(HEDP);



1-Hydroxy-1,1-Ethanediyl ester;



Oxyethylidenediphosphonic Acid(OEDP)
Product Feature
Structural Formula:

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

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. 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.

Product Specification / Models
Specification:

ItemstIndex

AppearancetClear, Colorless to pale yellow aqueous solutiontWhite crystal powder

Active content (HEDP)%t58.0-62.0t90.0 min

Active content (HEDPu00b7H2O)%t-t98.0 min

Phosphorous acid (as PO33-)%t1.0 maxt0.8 max

Phosphoric acid (asPO43- )%t0.6 maxt0.5 max

Chloride (as Cl-) ppmt100.0 maxt100.0max

pH (1% solution)t2.0 maxt2.0 max

Density (20)g/cm3t1.43-1.47t-

Fe,mg/Lt10.0 maxt5.0 max

Colour APHA (Hazen)t30.0 maxt-

Ca sequestration (mg CaCO3/g)t500.0 mint

Usage:
Application / Models
HEDP is used as scale and corrosion inhibition in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP is 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. The dosage of 1-10mg/L is preferred as scale inhibitor, 10-50mg/L as corrosion inhibitor, and 1000-2000mg/L as detergent. Usually, HEDP is used together with polycarboxylic acid.
Other Information
HEDP;HEDP(A);HEDPA;



Etidronic Acid;



1-Hydroxy Ethylidene-1,1-Diphosphonic Acid;



Hydroxyethylidene-1,1-diphosphonicacid(HEDP);



1-Hydroxyethylidenediphosphonic Acid;



Hydroxyethylidene Diphosphonic acid(HEDP);



1-Hydroxy-1,1-Ethanediyl ester;



Oxyethylidenediphosphonic Acid(OEDP)
We are leading manufacturer and exporter of water treatment chemical in China since 2006. Our company is located in chinese largest water treatment production base in Zaozhuang city,Shandong province. Our products are of world class quality and great variety. We have already been the regular supplier for various world reputed companies on Russia, Turkey, USA, Australia, Vietnam, Indonesia and Thailand.

Our main production capacity is as following:

---Phosphonate: HEDP, ATMP, PBTCA and DTPMPA 20000MT

---Crystal solid HEDP and solid ATMP 2000MT

---Acrylic acid Polymer: AA-AMPS, MA-AA, HPMA, PAA 10000MT, KR-1100 and KR-1000, KR-2000, KR-3100

---Biocide: Benzalkonium Chloride 10000MT

---CMIT/MIT 1000MT

---THPS 5000MT

Other supplies related products

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

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corrosion and scale inhibitor

Shandong Aona Chemical Co. ,LTD.

China China
Exporter
86-532-85781295

1-Hydroxy Ethylidene-1,1-Diphosphonic Acid,HEDP

Payment:L/C,TT
Delivery:Shipping
Origin:Shandong, China(mainland)
Packing:25kg/bag,customers' requirement
Hedp, 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid

Shandong Dongtai Water Treatment Co.,Ltd

China China
Manufacturer, Exporter
+86 186 1367 9618

Zaozhuang Kerui Chemicals Co.,Ltd.

China China
Contact Person: wendy
Telephone: 86-632-1558820152
Location: Shandong, China
Fax:86-632-3671189
Business Type:Manufacturer, Exporter
Main Target Region:World Wide
Address:
xichangroad011 lunanshuicheng shizhongqu
Main Product:
1 MT
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