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, it has good scale and corrosion inhibition
effects even under 250℃, it 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
can form six-ring chelating compounds with metal ions in
water system, Ca2+ in particular.
HEDP•Na2 has good scale
inhibition effects and obvious dissolution threshold
effects. When used with other Water Treatment Chemicals, the
synergistic effects is better.
Colorless to light yellow transparent liquid
|Active content (HEDP) %
|Active content (HEDP•Na2)
|PH (1% water
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
HEDP•Na2 is used as detergent for metal and nonmetal. In
is used as peroxide stabilizer and dye-fixing agent; In
HEDP•Na2 is used as chelating
Package and Storage:
Liquid: 200L plastic drum, IBC(1000L),customers' requirement. Storage for twelve months in shady room and dry place.
Solid: 25kg/bag, customers' requirement. Storage for ten months in shady room and dry place.
Weak acidity, Avoid contact with eye and
skin, once contacted, flush with water.
Disodium Etidronate Hydrate;Disodium dihydrogen bisphosphonate (1-hydroxyethylidene)bisphosphonate