Hefei TNJ Chemical Industry Co.,Ltd.
tnj chemical
Home>> Water Treatment >> 1-Hydroxyethane-1,1-diphosphonic Acid HEDP 60% 90%

products list

Not exactly what you want? Please try Contact Us>>

1-Hydroxyethane-1,1-diphosphonic Acid HEDP 60% 90% suppliers
1-Hydroxyethane-1,1-diphosphonic Acid HEDP 60% 90%
  • CAS No.:

    2809-21-4
  • Molecular Formula:

    C2H8O7P2
  • Quality Standard:

    60% 90%
  • Packing:

    25kg/bag or 200L drum
  • Mininmum Order:

    25kg

contact now

  • Product Details
    • #
    • #
    • #
    • #
    • #
    • #

If you want to find reliable China 1-Hydroxyethane-1,1-diphosphonic Acid HEDP 60% 90% suppliers, factory & manufacturers offering best price, please contact Hefei TNJ Chemical. We guarantee good price of 1-Hydroxyethane-1,1-diphosphonic Acid HEDP 60% 90% CAS 2809-21-4 with high quality. If you want to buy 1-Hydroxyethane-1,1-diphosphonic Acid or buy HEDP 60% 90%, please feel free to contact sales@tnjchem.com


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. HEDPshows 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.

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. 


Specification

Appearance Clear, Colorless to pale yellow aqueous solution White crystal powder
Active content (HEDP)% 60.0 min 90.0 min
Active content (HEDP·H2O)% - 98.0 min
Phosphorous acid (as PO33-)% 2.0 max 0.8 max
Phosphoric acid  (as PO43- )% 0.8 max 0.5 max
Chloride (as Cl-)% 0.02 max 0.01 max
pH (1% water solution) 2.0 max 2.0 max
Density  (20ºC)g/cm3 1.40 min -
Fe, mg/L 20.0 max 10.0 max
Ca sequestration (mg CaCO3/g) 500.0 min  


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.

 

Package and Storage

HEDP liquid: 200L plastic drum,IBC(1000L),customers' requirement.

HEDP solid:  25kg/bag,customers' requirement.

Storage for twelve months in room shady and dry place.


Send your inquiry to our company

      Products :

      1-Hydroxyethane-1,1-diphosphonic Acid HEDP 60% 90%
    • Click here to see our Contact Information>>