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CAS No. 29329-71-3 (x-Na), 3794-83-0 (4-Na) Dequest 2016/2016DG
Molecular Formula:
C2H4O7P2Na4 Molecular weight: 294
Structural Formula:
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Properties:
Dequest 2016 is the sodium salt of Dequest
2010, 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 250℃.
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.
Specification:
|
Items |
Index |
|
Appearance |
White powder |
Colorless to light yellow transparent liquid |
|
Active component（HEDP）％ |
56.0min |
20.3-21.7 |
|
Active component（HEDP•Na4）％ |
79.9min |
29.0-31.0 |
|
Total phosphoric acid (as PO43-) ％ |
52.0-54.0 |
18.4-20.4 |
|
Fe， ppm |
35.0max |
20max |
|
Dry weight loss，% |
15max |
-- |
|
density（20℃）g/cm3 |
-- |
1.26-1.36 |
|
PH |
11.0-12.0 (1% water solution) |
10.0-12.0 (as it) |
Package and Storage:
For liquid: Normally In 250kg
net Plastic Drum, IBC drum can also be used as required.
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.
Safety Protection:
Weak alkine, Avoid contact with
eye and skin, once contacted, flush with water.
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