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    ZHENGZHOU HOO CHEMTEC CO.,LTD   

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      CAS NO 2809-21-4 HEDP 98% POWDER,60% LIQUID
      Category : Water & Waste Treatment


    CAS NO 2809-21-4 HEDP 98% powder,60% liquid

    1.Chemical name: 1-Hydroxyethylidene-1, 1-Diphosphonic Acid
    2.Abbreviation: HEDP
    3.Molecular Formula: C2H8O7P2

    4.Molecular Weight: 206
    5.CAS Number: 2809-21-4
    6.Specifications:
    Appearance: White crystalline powder
    Active Acid as HEDP (%): 90.0 min
    Phosphorous acid as PO33- (%): 2.5 max
    Phosphorous acid as PO43- (%): 0.7 max

    7.Application Notes: Noted for its excellent CaCO3 scale inhibition and chlorine stability.
    8.Recommended Uses: Cooling water treatment, boiler treatment, I & I cleaners, swimming pool stain prevention, - - metal ion control.

    9.If you have any of interest for it, pls enquire us freely, we will be very glad to quote our very competitive price for you!



    1.Chemical name: 1-Hydroxyethylidene-1, 1-Diphosphonic Acid
    2.Abbreviation: HEDP
    3.Molecular Formula: C2H8O7P2
    4.Molecular Weight: 206
    5.CAS NO.: 2809-21-4
    6.Specifications:

    Appearance: colorless transparent liquid
    Active ingredient: 58.0 to 62.0%
    Phosphorous acid (as PO 3 ) 2.5% max.
    Phosphoric acid (as PO 4 ) 0.7%max.
    Iron(ppm) 35 mg/L
    Chloride(cl) 0.5%max.100ppm max
    Density (20C) g/cm 3 1.39-1.49
    PH (1% water solution) 2.0 max.
    calcium sequestation mgcaco3/g 500mg/g

    7 Application:

    1) A scale and synergistic corrosion inhibitor for iron rust and mineral scale from pipes of cooling circulation water units and boilers;
    2) - - metal chelate agent for color fixing and bleaching in textile;
    3) Complexing agent for electron plate and scale cleaning agent for - - metals.
    4) Recommended Uses: Cooling water treatment, boiler treatment, I & I cleaners, swimming pool stain prevention, - - metal ion control.

    8 Packaging and storage:
    in 250kgs/plastic drum.
    Acidity, Avoid contact with eye and skin, once contacted, flush with water

    9 Usage:
    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 non- - metal. 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.

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      Contact Information
      7 Dongqing Street,High&New Technology Industry Development Zone, Zhengzhou,China   450000     / China
    Tel : 86-371-63386815    Fax : 86-371- 67985568       

    Url : http://www.hoochem.com
    E-mail :
    Contact Person : hoochem   hoochem   / 


Last Update: 29.06.2016
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