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Chemfine International Co., Ltd.

1-Hydroxyethylidene-1 1-Diphosphonic Aci, Cas: 2809-21-4, Hedp manufacturer / supplier in China, offering [2809-21-4]1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP), [70-55-3]P-Toluenesulfonamide, [80-39-7]N-Ethyl-P-Toluenesulfonamide and so on.

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Supplier Homepage Product Water Treatment [2809-21-4]1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP)

[2809-21-4]1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP)

FOB Price: US $9.88-12.88 / Piece
Min. Order: 250 kg
Min. Order FOB Price
250 kg US $9.88-12.88/ Piece
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Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: 1-Hydroxyethylidene-1, 1-diphosphonic acid(HEDP)
  • Structure Formula: C2h8o7p2
  • Melting Point: 198~199
  • Stability: Stable
  • Appearence: Colorless Liquid
  • Molecular Weight: 206.03
  • Density: 1.45
  • Contact Us: Anytime
Product Description
Structure formula of HEDP:
[2809-21-4]1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP)
Specification of HEDP:
Please see the following form.

 Usage of HEDP:
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 of HEDP:
HEDP liquid: Normally In 250kg net Plastic Drum, IBC drum can also be used as required HEDP solid: 25kg inner liner polyethylene (PE) bag, outer plastic woven bag, or confirmed by clients.
[2809-21-4]1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP)

Factory of HEDP:

Our factory has a rigorous quality-control in the whole manufacturing process and a
discreet quality-inspection after production so as to ensure a good and satisfactory
quality of products before they flow into the market.
 Some photos of our factory are showed as follows
[2809-21-4]1-Hydroxyethylidene-1, 1-Diphosphonic Acid (HEDP)

items index
Appearance Colorless or light yellow transparent liquid White crystal powder
Active content (HEDP)% 58.0-62.0 89.0 min
Phosphorous acid (as PO3 3-) % 2.0 max 0.5 max
Phosphoric acid  (asPO4 3- )% 0.8 max 0.5 max
Chloride (as Cl - )% 0.01 max 0.01 max
pH (1 solution) 2 max 2 max
Density  (20)g/cm 3 1.40 -
Fe ion ppm 10 max 20 max
Colour APHA (Hazen) 40 max -
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