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HEDP tetrasodium salt HEDP.Na4CAS 3794-83-0
HEDP tetrasodium salt HEDP.Na4 CAS 3794-83-0
  • CAS No.:

  • Molecular Formula:

  • Quality Standard:

    Tech grad
  • Packing:

    200kg/fiber drum 25kg/bag
  • Mininmum Order:


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  • Product Details

Buy HEDP.Na4 HEDP tetrasodium salt CAS 3794-83-0, water treatment chemical from TNJ Chemical, China leading HEDP tetrasodium salt HEDP.Na4 suppliers, factory & manufacturers. If you want to buy HEDP tetrasodium salt HEDP.Na4 CAS 3794-83-0, please mail to [email protected]

HEDP-Na4 CAS 3794-83-0 is an organophosphoric acid corrosion inhibitor. HEDP-Na4 CAS 3794-83-0 has good antiscale and visible threshold effects. When built together with other water treatment chemicals, it shows good synergistic effects.

The solid state of HEDP-Na4 CAS 3794-83-0 is crystal powder, suitable for usage in winter and freezing districts. Because of its high purity, it can be used as cleaning agent in electronic fields and as additives in daily chemicals.



Colorless transparent liquid

White powder

Active content (HEDP)%


60.0 min

Active content (HEDP•Na4)%


85.0 min

Total phosphoric acid (as PO43-) %


55.0 min

Fe, mg/L

20.0 max

35.0 max



9.0 max

Density (20ºC)g/cm3



PH (1% water solution)




HEDP Na4 is the sodium salt of HEDP, HEDP Na4 is an good scale inhibitor for calcium carbonate, it can be used in low pressure boiler water system, circulating water system, industrial and municipal cleaning water system and swimming pool.

The solid HEDP Na4 is white powder, soluble in water, easily deliquescence, suitable for use in winter and freezing districts. It is a kind of organophorphonic acid scale and corrosion inhibitor, can form stable complex with Fe, Cu and Zn ions, it can dissolve the oxides on metal surface, it has good scale and corrosion inhibition effect under 250ºC.

HEDP Na4 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 Na4 is used as detergent for metal and nonmetal. In dyeing industry, HEDP Na4 is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP Na4 is used as chelating agent. 


Liquid: 200L plastic drum, IBC(1000L),customers’ requirement.

Solid: 25kg/bag, customers’ requirement.


(1) Stored in a cool and dry well-closed container and in ventilated area.

(2) kept away from moisture and strong light or high temperature.

(3) Two years under well storage situation and stored away from direct sun light.

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