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Calcium Peroxide | Compass Remediation Chemicals

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Calcium Peroxide

Calcium Peroxide is an oxygen-generating compound used for enhanced aerobic bioremediation for treatment of a variety of contaminants, including petroleum hydrocarbons, some solvents, pesticides, and others. The use of calcium peroxide promotes increased contaminant removal and  provides a sustained release of oxygen (up to 12 months) with no lock up or encapsulation.

Hydrocarbon Remediation

The use of aerobic bioremediation technologies is most commonly at sites with petroleum hydrocarbons (BTEX, PAHs, TPH), fuel oxygenates and related compounds (MTBE, TBA). By providing a supplemental supply of oxygen to the subsurface through enhancements such as oxygen releasing compounds, the oxygen is made available to aerobic microorganisms in the unsaturated zone, saturated zone or both.

Enhanced aerobic biodegradation is suitable for sites with low to moderate levels of contamination. For sites with higher levels of petroleum hydrocarbons, it is often used in conjunction with a more powerful treatment method, such as in situ chemical oxidation (ISCO).

Standard Packaging

Calcium Peroxide

55 pound bags

Design Assistance

Project Support

Compass realizes that not all project sites are the same. At times, different goals apply to different sites. Our team of professionals work with you to determine what the best solution is for you, both from a cost and project goals perspective. Making the correct choice is critical to success. We would like to work with you on that choice.

Contaminants Treated

Examples of Contaminants Treated

  •  BTEX (benzene, toluene, ethylbenzene and xylenes)
  •  MTBE (methyl tertiary butyl ether)
  •  TPH (total petroleum hydrocarbons) from light and heavy fuel oils
  •  non-halogenated volatile solvents, such as methylethylketone, methanol, ethanol, acetone, ethyl
  •  acetate, acetonitrile, tert-butyl alcohol, phenols
  •  PAHs (polycyclic aromatic hydrocarbons)
  •  some halogenated compounds, such as vinyl chloride, chlorobenzenes, high explosives

Chemical & Physical Data

Solubililty Practically insoluble in water

Soluble in acid

pH of a 1% slurry at 25° C approximate 10.5 to 11.8
Loose Bulk Density approximate lb/cu ft 45-65
Appearance Yellow/white powder


Assay 75.0% min calcium peroxide
Active Oxygen 16.6% min
Typical application rates are 2 to 6 pound/cubic yard soil
One pound of CaO2 yields 3 liters of O2

Application Methods

Open pit/excavation post UST and soil removal
Direct injections in the plume (slurry)
PRB (permeable reactive barrier)

Our Priority is You

Compass was founded to be a service-based products company focusing strictly on customer needs; competitive pricing, impeccable delivery and accurate billing. There is a gap in real customer service in the remediation products marketplace and our goal is to change that. Your success depends on it. The Compass team delivers.


We specialize in chemicals for environmental remediation and we take care to select products that meet the highest quality requirements.

Logistics Support

There is a reason we put logistics front and center – we understand how critical deliveries can be and that your projects are time and resource sensitive.