Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment

Product Details
Customization: Available
CAS No.: 2809-21-4
Formula: C2h8o7p2
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  • Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
  • Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
  • Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
  • Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
  • Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
  • Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
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  • Overview
  • Product Description
  • Product Specification
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Overview

Basic Info.

Model NO.
hedp
Acid-Base Property
Acidic Surface Disposal Agent
Certification
REACH
Environmental Protection
Yes
Color
Colorless to Light Yellow
Appearance
Liquid
Type
Industrial Circulating Water Treatment Agent
Grade
Industry Grade
Application
Corrosion Inhibitor Metal Rust Inhibitor
Delivery Time
7-15days
Other Name
HEDP
Assay
60%
Package
200kg/Drum,1000kg/IBC Drum
Transport Package
200kg/Drum, 1000IBC Drum
Specification
60%
Trademark
NO
Origin
China

Product Description

Product Description
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment

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 250ºC. 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 chlo rine 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.
 
 
Product Name:1-Hydroxyethylidene-1,1-diphosphonic acid

Identification
Molecular Formula:C2H8O7P2
Molecular Weight :206.02
EINECS Number:220-552-8
CAS Number:2809-21-4

Properties
Melting point :198~199ºC
Boiling point:578.8±60.0 °C(Predicted)
Density:1.45 (60% aq.)

 
Product Specification
Index HEDP 60% HEDP 90%
Appearance Clear, Colorless to pale yellow aqueous solution White crystal powder
Active content (HEDP) by wt % 58.0-62.0 90.0 min
Active content (HEDP·H2O) by wt % - 98.0 min
Phos phorous acid (as PO3 3-) by wt % 2.0 max 0.8 max
Phos phoric acid (as PO4 3-) by wt % 0.8 max 0.5 max
Chloride (as Cl-) by wt % 0.02 max 0.01 max
pH (1% water solution) 2.0 max 2.0 max
Density (20ºC) g/cm3 1.40 min -
Fe by mg/L 20.0 max 10.0 max
Ca sequestration by mg CaCO3/g 500.0 min -
Product Application
 

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.
 

HEDP is a scale and synergistic corrosion inhibitor for iron rust and mineral scalefrom pipes of cooling circulation water units and boilers; Metal chelateagent for color fixing and bleaching in textile; Complexing agent for electronplate and scale cleaning agent for metals.
Packaging & Shipping
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment


Package:25kg/drum,200kg/drum,1000kg/IBC drum
Shipping marks can be customized according to customer requirements
 

Company Profile
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment
 
Dalian Huayang Machinery and Chemistry Co., Ltd. has been engaged in the chemical industry for more than 12 years. We are leading chemical enterprise engaged in the research, development, production and sale of chemicals. With a rich product portfolio and strong technical strength, our company has established business relations with more than 130 countries across Asia, Europe and Africa. Huayang Chemistry Trade Company is a leading chemical enterprise engaged in the research, development, production and sale of chemicals. With a rich product portfolio and strong technical strength, our company has established business relations with more than 130 countries across Asia, Europe and Africa.
Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment

 

FAQ

Q: Are you a factory or a trading company?
A: We are a trading company, but we have worked with many factories for many years. The prices are very competitive.

Q: How do I order?
A: Make an inquiry to us → customize drawing and sample → Inform us of use scenario → Receive our product design recommendation → Discuss details → Confirm sample → sign contract/deposit → Mass production → Goods ready → Balance/delivery → Further cooperation.

Q: What about the sample order?
A: I can give you the sample. Please contact us for details. Once we charge you the sample fee, rest assured that it will be refunded when you place your official order.

Q: Which modes of transportation are available?
A: Sea, air, land, express, special line. Can meet your any need.

Q: How long does it take for delivery [production] and shipment?
A: The delivery time depends on the quantity you order. It usually takes 7-15 working days.

Q: I'm missing some products in my package. What can I do?
A: Please contact our support team, we will confirm the contents of your order with packaging, compensation according to the actual situation, we apologize for the inconvenience.

Q: How do I confirm payment?
A: We accept wire transfer, paypal payment, other payment methods are also acceptable, please contact us before you pay through other payment methods. Another 30% down payment is feasible and the balance should be paid before shipment.

 

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Hydroxyethylidene Diphosphonic Acid/Etidronic Acid 60% (HEDP) CAS 2809-21-4 for Water Treatment

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