Skip to content Skip to footer

CorTrol* OS5300 organic oxygen scavenger

Water Technologies & Solutions fact sheet

CorTrol* OS5300

organic oxygen scavenger

  • Controls oxygen corrosion.
  • Contributes to passivation.
  • Improves boiler reliability.

description and use

CorTrol OS5300 is an aqueous blend of organic oxygen scavengers.

CorTrol OS5300 is designed to control corrosion due to dissolved oxygen in boiler feedwater systems.

Removal or reduction of oxygen and improved feedwater conditioning contributes to iron passivation for greater operational reliability.

typical applications

Even with good deaerating heater operation, sufficient dissolved oxygen can remain in the feedwater to damage the boiler system. Low levels of dissolved oxygen can be detrimental to high-pressure (high temperature) systems. Oxygen in water produces pitting which is particularly severe because of its localised nature.

Economisers and feedwater heaters are especially susceptible to oxygen attack.

While it can effectively be used in low-pressure boiler systems, CorTrol OS5300 was developed as an oxygen scavenger for high-pressure applications where boiler water solids are a major concern.

Because CorTrol OS5300 contributes no inorganic dissolved solid, it is preferable to other inorganic scavenger when feedwater is used for attemperation. When feedwater containing an inorganic oxygen scavenger is used for attemperation, harmful deposits on superheater tubes and/or turbines may result.

CorTrol OS5300 is also suitable for use in petrochemical plants because it does not affect sulphur-sensitive catalysts. CorTrol OS5300 has a negligible impact on steam purity and cation conductivity in condensate.

treatment and feeding requirements

Feed point – CorTrol OS5300 should be fed continuously to either the drop leg between the deaerator scrubbing section and the storage section or directly into the deaerator storage section. It can also be fed to the feedwater line.

Dilution – Use good quality condensate, demineralised water or deaerated feedwater to make a convenient feeding strength. The product may be diluted in any proportion. Mild agitation should be provided for initial mixing only.

general properties

The physical properties of CorTrol OS5300 are shown on the Safety Data Sheet, a copy of which is available on request.

packaging information

CorTrol OS5300 is a liquid blend and is available in a wide variety of customised containers and delivery methods. Contact your local VEOLIA representative for details.

safety precautions

A Safety Data Sheet containing detailed information about this product is available on request.

Find a contact near you by visiting and clicking on “Contact Us.” *Trademark of VEOLIA; may be registered in one or more countries.

©2017 VEOLIA. All rights reserved.

E-PFCorTrolOS5300_EN.docx Dec-10