Shandong, China
Business Type:
Manufacturer/Factory, Trading Company
Export Year:
Main Markets:
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, ...
Terms of Payment:
LC, T/T, D/P, PayPal, Western Union, Money Gram
OEM/ODM Service
Sample Available
U.S. Warehouse
Korean Speaker

HEDP, Chemical, 1-Hydroxyethylidene-1 1- Diphosphonic a manufacturer / supplier in China, offering 1-Hydroxyethylidene-1 1- Diphosphonic Acid (HEDP) 60% Liquid, Chitosan Agriculture Grade CAS No. 9012-76-4, Chitosan Agriculture Grade with Good Quality and so on.

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Supplier Homepage Products CHEMICALS Others CHEMICALS 1-Hydroxyethylidene-1 1- Diphosphonic Acid (HEDP) 60% Liquid

1-Hydroxyethylidene-1 1- Diphosphonic Acid (HEDP) 60% Liquid

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Min. Order: 1 Ton
Port: Qingdao, China
Production Capacity: 10000 Ton/Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal
Acid-Base Property: Acidic Surface Disposal Agent
Certification: WQA, REACH
Environmental Protection: Yes
Color: White
Appearance: Liquid
Type: Oil / Water Separation Agent

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Basic Info

Model NO.: 60%min
Model No: Industry Grade
Form: Liquid
Package: 250kg/Net Drum
Place of Origin: China
Trademark: salus
Transport Package: 250kg/Net Drum or 1250kg IBC Tank
Specification: standard
Origin: China Mainland
HS Code: 2931000090

Product Description

Product Description
CAS No. 2809-21-4
Molecular Formula: C2H8O7P2
Molecular Weight: 206.02

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 centigrade. 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.

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.

Packing and Storage:
HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.

Storage for ten months in room shady and dry place.
ITEM                            Standard
APPEARANCE      Liquid      Powder
Active Content  (HEDP)% ≥      60.0         89.0
Phosphorous acid(PO 3 3- )% ≤      2.0       0.80
Phosphoric acid(PO 4 3- )% ≤     0.8        0.50
Chlorides   (Cl - )% ≤       0.01      0.01
PH(1% ) ≤        2.0          2.0
Density(20°C)g/cm 3  ≥      1.40          __
Calcium chelating value mg/g ≥        500          __
Fe 2+ mg/L ≤       10        5.0
Active component  (HEDP@H 2 O) % ≥       __         98.0

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