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Hebei Jinhong Chemicals Co., Ltd.

HEDP. Na2, Water Treatment Chemicals, Corrosion Inhibitor manufacturer / supplier in China, offering HEDP. Na2, High Quality, Competitive Price, Sealants (on line leak sealing), Hydrolyzed Polymaleic Anhydride, HPMA and so on.

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Supplier Homepage Product ORGANOPHOSPHORIC SALTS HEDP salts HEDP. Na2, High Quality, Competitive Price

HEDP. Na2, High Quality, Competitive Price

FOB Price: US $300-1,000 / Ton
Min. Order: 1 Ton
Min. Order FOB Price
1 Ton US $300-1,000/ Ton
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Production Capacity: 50000mt/Year
Transport Package: 200kgs or 250kgs Per Drum; IBC; Customization
Payment Terms: L/C, T/T, D/P

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Basic Info
  • Model NO.: HEDP. Na2
  • Environmental Protection: Yes
  • Appearance: Liquid
  • Fe, Mg/L: 20.0max
  • Usage 1: Circulating Cool Water System
  • Usage 3: Peroxide Stabilizer
  • Trademark: jinhong
  • Origin: China
  • Acid-Base Property: Neutral Surface Disposal Agent
  • Color: Colorless or Light Yellow Transparent Liquid
  • Type: Industrial Circulating Water Treatment Agent
  • Moisture%: 3.0~6.0
  • Usage 2: Detergent for Metal and Nonmetal
  • Usage 4: Dye-Fixing Agent
  • Specification: 20%
Product Description

Disodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na2)

CAS No. 7414-83-7
Molecular Formula: C2H6O7P2Na2 Molecular weight: 250


HEDP•Na2 is an organophosphonic acid corrosion inhibitor, it can chelate with Fe, Cu, and Zn ions, it can dissolve the oxidized materials, it has good scale and corrosion inhibition effects even under 250ºC, it is stable under high pH value, not easy to be hydrolyzed, not easy to be decomposed under normal light and heat condition, its acid/alkaline and chloride oxidation tolerance are better than that of other organophosph-onic acids. HEDP•Na2 can form six-ring chelating compounds with metal ions in water system, Ca2+ in particular. HEDP•Na2 has good scale inhibition effects and obvious dissolution threshold effects. When used with other Water Treatment Chemicals, the synergistic effects is better.


AppearanceColorless to light yellow transparent liquidWhite powder
Active content (HEDP) % 16.5 min74.0-79.0
Active content (HEDP•Na2) % 20.0 min89.9-95.8
Density (20ºC)g/cm31.12-1.22--
Fe, mg/L --20.0 max
Moisture,% --3.0-6.0
PH (1% water solution)4.0-6.04.0-6.0


HEDP•Na2 is widely used in circulating cool water system, medium and low pressure boiler, oil field water pipelines as scale and corrosion inhibitor in fields such as electric power, chemical industry, metallurgy, fertilizer, etc.. In light woven industry, HEDP•Na2 is used as detergent for metal and nonmetal. In dyeing industry, HEDP•Na2 is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP•Na2 is used as chelating agent.

Package and Storage:

Liquid: 200L plastic drum, IBC(1000L),customers' requirement. Storage for ten months in shady room and dry place.
Solid: 25kg/bag, customers' requirement. Storage for ten months in shady room and dry place.

Safety Protection:

Weak acidity, Avoid contact with eye and skin, once contacted, flush with water.


Disodium Etidronate Hydrate;Disodium dihydrogen bisphosphonate (1-hydroxyethylidene)bisphosphonate
Keywords: HEDP·Na2
Related Products:
Disodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP•Na4)
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP) 

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