• Liquid / Solid Water Purifying Agents In Circulating Cool Water System
    • Liquid / Solid Water Purifying Agents In Circulating Cool Water System
    • Liquid / Solid Water Purifying Agents In Circulating Cool Water System
    • Liquid / Solid Water Purifying Agents In Circulating Cool Water System
  • Liquid / Solid Water Purifying Agents In Circulating Cool Water System

    Liquid / Solid Water Purifying Agents In Circulating Cool Water System

    Product Details:

    Place of Origin: China
    Brand Name: B&W
    Certification: ISO 9001:2008 ISO 14001:2004
    Model Number: HEDP

    Payment & Shipping Terms:

    Minimum Order Quantity: As Need
    Price: Negotiable
    Packaging Details: In plastic drum or PP bag
    Delivery Time: 2 Weeks
    Payment Terms: T/T, L/C
    Supply Ability: 5000 MT
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    Detail Information

    Molecular Formula: C2H8O7P2 Molecular Weight: 206.02
    Appearance: Colorless Or Light Yellow Transparent Liquid CAS No.: 2809-21-4
    Hazard Class: 3265 UN No.: 8
    High Light:

    water purification chemicals

    ,

    water purification liquid

    Product Description

    Liquid / Solid Water Purifying Agents In Circulating Cool Water System

    1 - Hydroxy Ethylidene - 1, 1 - Diphosphonic Acid HEDP Water Purifying Agents​ Liquid Or Solid Corrosion Inhibitor

     

     

    Description

     

    Commodity: 1 - Hydroxy Ethylidene - 1, 1 - Diphosphonic Acid, HEDP

    Appearance: Colorless or light yellow transparent liquid, White crystal powder

    Molecular Formula: C2H8O7P2

    Molecular Weight: 206.02

    CAS No.: 2809-21-4

    Class: 8

    UN No.: 3265

     

     

    Package and Storage

     

    Liquid: Normally 250kg net in drum, IBC, or per customers.

     

    Solid: 25kg in inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.

     

    Storage for ten months in room shady and dry place.

     

     

    Specification

     

    Items Index
    Appearance Colorless or light yellow transparent liquid White crystal powder
    Active content (HEDP) % 58.0-62.0 90 min
    Phosphoric acid (asPO43- ) % 0.8 max 0.5 max
    Phosphorous acid (as PO33-)% 2.0 max 0.8 max
    Chloride (as Cl-)% 0.01 max 0.01 max
    Density (20℃) g/cm3 1.40
    pH (1% solution) 2 max 2 max
    Fe ion ppm 10 max 5 max
    Colour APHA (Hazen) 30 max

     

     

    Properties

     

    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 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℃. 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.

     

     

    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 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.

     

     

    Safety Protection


    Acidity, Avoid contact with eye and skin, once contacted, flush with water immediately. 

     

     

    Liquid / Solid Water Purifying Agents In Circulating Cool Water System 0

     

    Liquid / Solid Water Purifying Agents In Circulating Cool Water System 1

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