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Home > Organic Chemistry > Carboxylic Acids and Derivatives > (1-Hydroxyethylidene)-1,1-diphosphonic acid for Sale > Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid HEDP-Na4 for Water Treatment
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Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid HEDP-Na4 for Water Treatment

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Unit Price: Get Latest Price
CAS No.:

2809-21-4

Grade:

Industrial Grade

Content:

99%

Port:

QingDao

Brand:

First Chems Co., LTD

Packaging:

10.0 kg/box

Price valid (until):

2026-04-28

Company Type:
Trader
Location:
China
Qualification:
Main Products:

Titanium dioxide,npk,pvc,sles,labsa,mdi

  • Product Description

  • Seller Information

  • Inquiry History

  • Description

    Appearance: 
    HEDP 60%: clear, colorless to pale yellow aqueous solution
    HEDP 90%: white crystal powder

    Characteristic:
    1. 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 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.
    2. 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.

    Main indexes:

    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
    Phosphorous acid (as PO3 3-) by wt % 2.0 max 0.8 max
    Phosphoric 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 -

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


    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 temperatures of 250°C. HEDP has good chemical stability under high pH values, is hard to hydrolyze, and is hard to decompose 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 the water system to form a hexa-element chelating complex, with calcium ions in particular. Therefore, HEDP has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

    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

    Company profile


            We have many years of professional experiences and a professional team of scientists and advanced equipments.  Nowadays we formed a large varieties large scale, complete categories and high technology content product chain.  Our quality system has been accredited by SGS and our quality center guarantees quality with full documentation control and complete facilities

    Based on the good quality, pretty competitive price and safe delivery our products are widely exported to many different countries, like Netherlands, Spain, UK, USA and so on.  And our products are highly recognized by customers around the world, so we can build long-term cooperative relationship with many pharmaceutical enterprises in the world.  We upload the principles of openness and transparency and dedicated to provide efficient and high quality services to every customer.  We are sincerely looking forward to establishing a long-term stable and win-win business relationship with every customer.

    Shop Wholesale Detergent Grade 151-21-3 SLS  Dodecyl Sulfate Sodium Salt-Detailed Image 4



    Packing and Shipping

     
    Shop Wholesale Detergent Grade 151-21-3 SLS  Dodecyl Sulfate Sodium Salt-Detailed Image 5

    Package:
    25kg, 50kg, 1000kg bags
    25mt/20' container without pallet


    FAQ




    Q: How to order this product?

    A: You can click "contact now" , and send us a inquiry, leave your number if possible, we will contact with you as soon as possible, then we can talk order details.



    Q: How long can I receive my ordered goods?

    A: We ship by express door to door;  you can receive it in 7-10 days.



    Q: What liquid should I add into the vial?  And how much liquid needed?

    A: You can add sterile water or saline, 1 vial add 1ml liquid is ok.



    Q: Will I have any side effects after using peptide?

    A: If you just begin to use, it is better to follow doctor's prescription.  And if there is no allergy or any uncomfortable symptom, you can continue to use but take it in a suitable dosage.  A few people will have slight allergy reaction, but after your body get used to it, the allergy will be disappear and back to normal.



    Q: How to store it?

    A: If it hasn't been opened, just put it in cool dry place, if it is opened, you may put it in cold storage for 2-5 degree condition.

    Packing and Shipping

    Certificates

    Basic Info
    Product Name:

    (1-Hydroxyethylidene)-1,1-diphosphonic acid

    Other Name:

    Phosphonic acid,P,P′-(1-hydroxyethylidene)bis-;Phosphonic acid,(1-hydroxyethylidene)di-;Phosphonic acid,(1-hydroxyethylidene)bis-;P,P′-(1-Hydroxyethylidene)bis[phosphonic acid];1-Hydroxyethane-1,1-diphosphonic acid;Etidronic acid;Ethane-1-hydroxy-1,1-diphosphonic acid;(1-Hydroxyethylidene)diphosphonic acid;Dequest Z 010;(1-Hydroxyethylidene)-1,1-diphosphonic acid;1000SL;Oxyethylidenediphosphonic acid;Hydroxyethanediphosphonic acid;1-Hydroxyethanediphosphonic acid;EHDP;Dequest 2010;1-Hydroxy-1,1-diphosphonoethane;Dequest 2015;HEDP;(1-Hydroxyethylidene)bisphosphonic acid;Turpinal SL;1-Hydroxyethane-1,1-bisphosphonic acid;Ferrofos 510;(1-Hydroxyethylidene)-1,1-bis(phosphonic acid);Feliox 115;Wayplex;Xydiphone;Lonza 106;Tecquest 360;OEDF;OEDP;Xidiphone;Ksidifon;Defloc EH 06;Mayoquest 1500;HDEPA;Turpinal SLR;Masquol P 210;Terpil SL;RP 61;Cublen K 60;Dequest 2010CS;1-Hydroxyethane-1,1-diyldiphosphonic acid;Sone 16;Dequest 16;Briquest ADPA 60A;Acetodiphosphonic acid;Unihib 106;Anti Cal 5;Sequion 10H;1-Hydroxyethylidene-1,1′-diphosphonic acid;Mascol P 210;NSC 227995;Belclene 660;Feliox CY 115;Chelate 101;OEDFK;1-Hydroxyethylidene-1,1-diphosphoric acid;Briquest ADPA-A;Acidum etidronicum;Ethydronate;Ethidronate;Etidronate;Dequest 2010LA;Feliox 115A;Xidifon;Kochtreat 75;Chelest PH 210L;Dequest D 2010;Dequest 2010R;1-Hydroxyethylidene-1,1-diphoshonic acid;Aquacid 105EX;Aquacid 105CG;51888-66-5;66216-98-6;83047-25-0;85188-80-3;85985-26-8;86159-18-4;100511-44-2;103736-66-9;106908-76-3;129130-42-3;138360-84-6;192526-55-9;303177-33-5;853028-38-3

    CAS No.:

    2809-21-4

    UN No.:

    3265

    Molecular Formula:

    C2H8O7P2

    InChIKeys:

    InChIKey=DBVJJBKOTRCVKF-UHFFFAOYSA-N

    Molecular Weight:

    206.02800

    Exact Mass:

    206.03

    EC Number:

    220-552-8

    UNII:

    M2F465ROXU

    NSC Number:

    227995

    DSSTox ID:

    DTXSID6023028

    NCI Thesaurus Code:

    C1332

    ATC Code:

    M - Musculo-skeletal system

    HScode:

    2931900090

    Characteristics
    PSA:

    154.91000

    XLogP3:

    -3.7

    Appearance:

    Liquid

    Density:

    1.45 (60% aq.)

    Melting Point:

    155 °C (decomp)

    Boiling Point:

    578.8ºC at 760 mmHg

    Flash Point:

    303.8ºC

    Refractive Index:

    1.586

    Water Solubility:

    Soluble in water.

    Vapor Pressure:

    8.34E-16mmHg at 25°C

    Toxicity:

    LD50 oral in mouse: 1800mg/kg

    Hazard Identification

    Classification of the substance or mixture

    Corrosive to metals, Category 1

    Acute toxicity - Category 4, Oral

    Serious eye damage, Category 1

    GHS label elements, including precautionary statements

    Pictogram(s)
    Signal word

    Danger

    Hazard statement(s)

    H290 May be corrosive to metals

    H302 Harmful if swallowed

    H318 Causes serious eye damage

    Precautionary statement(s)
    Prevention

    P234 Keep only in original packaging.

    P264 Wash ... thoroughly after handling.

    P270 Do not eat, drink or smoke when using this product.

    P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...

    Response

    P390 Absorb spillage to prevent material damage.

    P301+P317 IF SWALLOWED: Get medical help.

    P330 Rinse mouth.

    P305+P354+P338 IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

    P317 Get medical help.

    Storage

    P406 Store in a corrosion resistant/...container with a resistant inner liner.

    Disposal

    P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

    Other hazards which do not result in classification

    no data available

    Handling and Storage

    Precautions for safe handling

    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

    Conditions for safe storage, including any incompatibilities

    Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Titanium dioxide,npk,pvc,sles,labsa,mdi

    Location:

    37 Keji Road, Yanta District, Xi 'an City, Shaanxi Province

    Payment Terms:

    TT against copy of documents,L/C,TT against B/L draft before shipment,100% TT in advance

    Average lead Time:

    15

    Total Annual Revenue:

    $5 million-$10 million

    Total Employees:

    Less than 5

    Year of Establishment:

    2020

    COMPANY OVERVIEW

    First Chems Co., LTD,a joint-stock enterprise with production, export and services of chemicals, has widely adopted world-advanced equipments and management system, and our products quality is assured under the ISO9001 and ISO14001 standards, mainly specializes in developing Agriculture/Fertilizer chemicals series, Washing detergent chemicals series, Soda alkali chemicals series, Water treatment chemical series, etc.

    Our main products include:

    a. Agriculture/Feed chemicals series : Zinc Sulphate, Manganese sulfate etc.), 

    b. Washing detergent chemicals series : (LABSA, SLES, CEDA,STPP, etc.)

    c.  Soda alkali chemicals series : ( Caustic Soda , Sodium Sulphate Anhydrous etc.) 

    d. Water treatment chemical series: (Calcium hypochlorite, TCCA,SDIC, PAC- poly aluminium chloride, PFS, Aluminium sulfate etc.) 

    e. Adsorbent Desiccant Activated Alumina Ball

    f.  Raw material Calcium Aluminate ,Aluminium Hydroxide

  • Inquiry History
    26 Inquiries
    Country Product Purchase Quantity Date Posted
    Egypt

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

    1 20' Fcl Nov 15, 2025
    Russia

    Etidronic acid( HEDP)

    1 20' Fcl Feb 10, 2025
    Uzbekistan

    HEDP

    100 KG Jun 13, 2025
    United Arab Emirates

    Hydroxyethylidene Diphosphonic Acid - HEDP 60%

    20.00 MT Jun 8, 2026
    India

    HEDP 60%

    1 KG Apr 14, 2026
    Egypt

    1-Hydroxyethylidene-1,1-diphosphonic acid

    1.00 KG Mar 25, 2026
    Turkey

    HEDP 60%

    1 20' Fcl Feb 9, 2026
    Egypt

    HEDP Phosphonic Acid 1-Hydroxyethylidene-1, 1-Diphosphonic Acid

    1 20' Fcl Oct 11, 2025
    Egypt

    Hydroxyethylidene Diphosphonic Acid

    1.00 L Oct 9, 2025
    India

    HEDP60

    3 MT Sep 15, 2025
    South Korea

    2010LC HEDP, 60%

    20 KG Aug 27, 2025
    India

    1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP)

    1000 TON Aug 4, 2025
    India

    Etidronic acid (HEDP)

    65.00 KG Aug 1, 2025
    Indonesia

    Dequest 2010 LC

    1 MT Jul 31, 2025
    Brazil

    PHOSPHONATE - HEDP UN3265 CLAS 8

    176000.00 KG Jun 13, 2025
    India

    Hydroxyethylidene Diphosphonic Acid 60%

    10.00 MT Apr 23, 2025
    India

    1-Hydroxyethylidene-1,1-diphosphonic acid

    1.00 20' Fcl Dec 9, 2024
    India

    1-Hydroxyethylidene-1,1-diphosphonic acid

    1.00 20' Fcl Oct 16, 2024
    Egypt

    HEDP 60 % Liquid

    5 TON Jul 5, 2023
    Egypt

    Hydroxyethylidene Diphosphonic Acid

    1.00 KG Apr 27, 2026
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