Disodium Salt of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid
(HEDP·Na2)
[CAS
No.] 7417-83-7
CubleK2012
Molecular Formula:
C2H6O7P2Na2
Molecular
weight:
250
Structural Formula:
Properties:
This product is an organophosphoric acid
corrosion inhibitor, can chelate with Fe, Cu, and Zn ions to
form stable chelating compounds, can dissolve the oxidized
materials on these metals’ surfaces, shows excellent antiscale
corrosion inhibition effects under temperature 250℃, is stable
under high pH value, is not easy to hydrolyze, is not easy to
decompose under normal light and heat condition, its
acid/alkaline resistance and chloride oxidation resistance are
better than that of other organophosphoric acids. It can form
six-ring chelating compounds with metal ions in water system,
especially Ca2+. Therefore, this product has good scale
inhibition effects and obvious dissolution threshold effects.
When used together with other water treatment agents, the
synergistic effects is better.
Specification:
|
items |
index |
|
Appearance |
|
|
Active component（HEDP）％
≥
|
16.5 |
|
Active component（HEDP•Na2）％
≥ |
20.0 |
|
pH value（1％ water solution）
|
4.0-6.0 |
|
Density (20℃) g/cm3
≥ |
1.17 |
Usage:
This product is widely used in circulating cool water system,
medium and low pressure boiler, oil field water pipelines as
antiscale corrosion inhibition in fields such as electric power,
chemical industry, metallurgy, fertilizer, etc.. In light weaven
industry, this product is used as detergent for metal and
nonmetal. In dyeing industry, this product is used as peroxide
stabilizer and dye-fixing agent; In non-cyanide electroplating,
this product is used as chelating agent.
Package and Storage:
30kg or 250kg plastic barrel, or confirmed by clients. Storage
for ten months in room shady and dry place.
Safety Protection:
Weak
Acidity, Avoid contact with eye and skin, once contacted, flush
with water.
|
