Tetra Sodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP.NA4)

HEDP.NA4 can soluble in water and easily deliquescence. HEDP tetra-sodium is suitable for use in winter and freezing districts. HEDP.NA4 has a function as a acid scale and corrosion inhibitor. HEDP tetrasodium salt can form a stable complex with Fe, Cu and Zn ions. HEDP Na4 can dissolve the oxides on the metal surface. It has a good scale and corrosion inhibition effect under 250°C.

Molecular Formula: C2H4O7P2Na4   

HEDP Na4 is the tetrasodium salt of HEDP. This HEDP tetrasodium salt is a good scale inhibitor for calcium carbonate. It can be used in a low-pressure boiler water system, circulating water system, industrial and municipal cleaning water system and swimming pool.