CAS No.: 7414-83-7
Molecular Formula: C2H6O7P2Na2
Molecular weight: 250
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 organophosph-onic acids. HEDP•Na2 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
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.
Package and Storage:
For liquid: Normally In 250kg net Plastic Drum,
IBC drum can also be used as required. Storage for twelve months in
room shady and dry place.
For solid: inner liner polyethylene (PE) bag, outer
plastic woven bag, or confirmed by clients. Storage for ten months
in room shady and dry place. .
Weak acidity, Avoid contact with eye and skin, once
contacted, flush with water.