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

Categories Orgnophosphoric salts
Place of Origin: china
Brand Name: Email: coco@watertreatmentchem.com
Model Number: 7414-83-7
Certification: ISO 9001:2008 & ISO 14001:2004.
Price: 1-20000USD
Packaging Details: 200L plasticdrum, IBC (1000L),customers' requirement
Delivery Time: 15 days
Payment Terms: T/T,L/C
Supply Ability: 400000 Metic Tons
MOQ: 1 Metic Ton
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HEDP•Na2(Disodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid)

HEDP•Na2 is an organophosphonic acid corrosion inhibitor. It can chelate with Fe, Cu, and Zn ions, and dissolve the oxidized materials. This salt has good scale and corrosion inhibition effects even under 250℃.
HEDP•Na2 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. It has good scale inhibition effects and obvious dissolution threshold effects. When used with other Water Treatment Chemicals, the synergistic effect is better.


AppearanceColorless to yellowish transparent liquidWhite powder
Active content (HEDP) %16.5 min74.0-79.0
Active content (HEDP•Na2) %20.0 min89.8 min
density (20℃) g/cm31.12-1.22--
Fe, mg/L--35 max
Phosphorous acid (as PO33- ) %--3 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. HEDP•Na2 is used as detergent for metal and nonmetal in light woven industry while in dyeing industry, it is used as peroxide stabilizer and dye-fixing agent. In non-cyanide electroplating, HEDP•Na2 is used as chelating agent.

We are the manufacturer and exporter of water treatment chemical,covering Organophosphates, Carboxylic Copolymer, Bactericide and algaecide, Corrosion inhibitor, four series which are mainly used in industrial water treatment of cooling towers, power plants, boilers, RO systems, oil fields and in textiles.

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dequest 2016BD


Edidronate disodium

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