Fact Sheet

OptiSperse* HP54674
Internal Treatment (High Purity Systems)
•

Outstanding protection against metal oxide
deposition and caustic corrosion

•

Designed and field proven for high pressure
boilers

•

Cost-effective program cuts downtime and
maintenance

•

Provides optimum pH/phosphate control

neutralizes any free caustic in the boiler water. GE
Water & Process Technologies formulates the sodium-to-phosphate ratio required to keep your system within control limits. This combination of
chemical mechanisms provides the most effective
coordinated phosphate/pH control program available. This treatment buffers the boiler water, preventing localized pH excursions that lead to
corrosion of boiler metal (Figure 1).

Description and Use
OptiSperse* HP54674 is an aqueous blend of phosphate and polymeric dispersants. The product contains SCP, a synthetic carboxylated polymer, which
disperses iron and other metal oxides.
OptiSperse HP54674 may be used alone or in combination with other OptiSperse HP products, depending on the feedwater quality, to provide
optimum pH/phosphate control in high pressure
boilers.

Typical Applications
Hardness is a minor constituent in water of high
purity. The major contaminants are typically iron
and copper oxides. Iron deposits are very porous;
this porosity makes the road to caustic corrosion
possible.
As steam escapes through the chimney-shaped
deposits, dissolved solids concentrate under the
deposit. Hydroxide is the predominant anion. As
such, sodium hydroxide can concentrate under the
deposit to produce caustic levels of 10% or more.
This results in caustic gouging of boiler metal.

Figure 1: Control diagram for a coordinated phosphate/pH
program.

The other key to GE program effectiveness is our
metal oxide-specific polymeric dispersant technology. Our tailored treatment approach uses SCP,
synthetic carboxylated polymer, to disperse iron
and other metal oxides, maintaining clean heat
transfer surfaces. Caustic corrosion is prevented by
maintaining a phosphate buffer with coordinated
control.

OptiSperse HP54674 fights the problem on two
fronts. First, its exclusive polymer controls metal
oxide deposits. Second, its built-in phosphate buffer
Find a contact near you by
visiting www.gewater.com or
e-mailing custhelp@ge.com.

Global Headquarters
Trevose, PA
+1-215-355-3300

Americas
Watertown, MA
+1-617-926-2500

Europe/Middle East/Africa
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+32-16-40-20-00

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Asia/Pacific
Shanghai, China
+86 (0) 411-8366-6489

AM-FSbOptiSperseHP54674_EN.doc Dec-07