Keolie cas no 2809-21-4 hedp 60% etidronic acid



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Keolie cas no 2809-21-4 hedp 60% etidronic acid
Keolie cas no 2809-21-4 hedp 60% etidronic acid
Keolie cas no 2809-21-4 hedp 60% etidronic acid
Keolie cas no 2809-21-4 hedp 60% etidronic acid
Keolie cas no 2809-21-4 hedp 60% etidronic acid
Keolie cas no 2809-21-4 hedp 60% etidronic acid
Keolie cas no 2809-21-4 hedp 60% etidronic acid

Keolie cas no 2809-21-4 hedp 60% etidronic acid

  • Item No.KL-Etidronic acid
    MOQ1 Ton
  • Size 17 x 6 x 14 cm
    Weight1 kg
Tag  wholesale
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From $2000.001500.001000.00 / Ton
You save $ -2,000.00
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If over 500pcs, mass production will start until pre-production sample has been approved.

Est. 7 days production

Quick Details
Product name Etidronic acid
Application Water Treatment Chemicals
Place of Origin CN;SHA
Brand Name Keolie
Assay HPLC 99%
Model Number KL-Etidronic acid
Package 200 Kg/drum
Storage Cool Dry Place
Shelf Life 24 Months
Classification Carboxylic Acid
Grade Standard Industrial Grade
CAS No. 2809-21-4
Grade Industry Garde
Other Names hedp
EINECS No. 218-791-8

Packaging & Delivery

Selling Units:
Single package size:
17 x 6 x 14 cm
Single gross weight:
1 kg

Keolie cas no 2809-21-4 hedp 60% etidronic acidintroduce.jpg

1. HEDP is an organophosphoric acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn etc. metal ions and form stable complex compound. It can dissolve the oxidized materials on these metals’ surfaces. Under  250℃ HEDP shows excellent scale and corrosion inhibition ability.

2. 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).

3. 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.

4. The solid of HEDP is high purity product, suitable for using in winter and freezing districts. it is quite suitable for using as cleaning agent in electronic fields and as additives in daily chemicals.




Colorless or light yellow transparent liquid

White crystal powder

Active content (HEDP)%


90.0 min

Phosphorous acid (as PO33-)%

2.0 max

0.5 max

Phosphoric acid  (asPO43- )%

0.8 max

0.5 max

Chloride (as Cl-)%

0.01 max

0.01 max

pH (1 solution)

2 max

2 max

Density  (20)g/cm3

1.430 - 1.460


Fe ion ppm

10 max

20 max


1. HEDP is widely used in the in circulating cool water system of electric power, chemical industry, metallurgy, fertilizer, etc. and widely used as a scale and corrosion inhibitor of low-pressure boilers, field waterflood, oil pipeline.

2. In light&textile industry,  HEDP is used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent.

3. 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:












250Kgs/Plastic Drum





Store above 0℃/32℉. Do not use steel containers. Suitable containers include polyethylene, polypropylene, fibreglass,glasslined steel and polyvinyl chloride. Do not use copper or brass plumbing or valves. Ensure that containers, whether empty or full, or part full, are tightly sealed unless in use.


Avoid creating or breathing product mist. Use with adequate exhaust ventilation if a mist is created.

Transport Information:

DOT Classification: Class 8: Corrosive material

Identification: : Corrosive Liquid, Acid, Organic, n.o.s. (1-hydroxyethanediphosphonic acid) UNNA: 3265 PG: III

Special Provisions for Transport: Not details.jpgcontact.jpgpackage&shipping.jpg

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