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HEDP.Na2 powder CAS No.: 7414-83-7

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HEDP.Na2 powder CAS No.: 7414-83-7

Brand Name : Twin
Model Number : HEDP.Na2
Certification : CIQ
Place of Origin : China
MOQ : 1 ton
Price : 2400usd/ton
Payment Terms : Western Union, T/T, L/C
Supply Ability : 60000ton/year
Delivery Time : 7days
Packaging Details : 25kg/bag,palletized,shrink wrapped
Appearance : white powder
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Disodium of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid


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, has good scale and corrosion inhibition effects even under 250℃.


AppearanceWhite powderWhite powder
Active content (HEDP•Na2)%90 min92.49
Active content(HEDP)%74.0-79.076.21
density (20℃)g/cm3----
Fe Ions(Fe3+) PPM35 max6.39
Phosphorous acid (as PO33-)%2 max1.06
Moisture, %3.0-6.04.06
PH (1% water solution)4.0-6.05.88


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.


25kg/bag, and can make special specification according to customers’ requirement

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