Twin International Co., Ltd.| Manufacturer
Twin International Co., Ltd.

China Manufacturer with main products: Potassium Bromide, Aluminum Chlorohydrate, Sodium Bromide, Sodium Benzoate, Ammonium Bromide, ACH, Sodium Monofluorophosphate, Mono Sodium...

Home  >Products Catalog > Industrial grade > HEDP. Na2 Powder CAS No.: 7414-83-7

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

Supply Ability: 200 Metric Ton per Week
Shipping: sea freight or air cargo according to quantity.
Payment Terms: L/C, T/T, Western Union, MoneyGram, Safebuy, Different payment terms against different countries.
Export Markets: South America, Southeast Asia, Africa, Mid East
Place of Origin: Shanghai in China
Packaging Details: 25kg/bag,palletized,shrink wrapped.

Quick Details

  • Purity: 90%min
  • Grade Standard: Industrial Grade
  • Other Names: HEDP.Na2
  • CAS No.: 7414-83-7
  • Classification: Phosphoric Acid
  • Model Number: HEDP.Na2
  • Brand Name: Twin
  • Application: industrial grade
  • Appearance: white powder
  • EINECS No.: 220-552-8
  • MF: C2H6O7P2Na2
  • Active content HEDP.Na2: 90%min


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

CAS No.: 7414-83-7

Molecular Formula: C2H6O7P2Na2          Molecular weight: 250

HEDPNa2 powder CAS No 7414837


HEDPNa2 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.






White powder

White powder

Active content (HEDPNa2)%

90 min


Active content(HEDP)%



Density (20)g/cm3



Fe Ions(Fe3+)  PPM

35 max


Phosphorous acid (as PO33-)%

2 max





PH (1% water solution)




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.HEDPNa2 powder CAS No 7414837


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

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