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Calcium Peroxide Storage — CaO2 Solid Oxygen-Release Tank Selection

Storing Calcium Peroxide? Start Here

Calcium peroxide is a pale-yellow solid known for its ability to release oxygen slowly when it comes into contact with moisture. This makes it ideal for applications like soil bioremediation and aquaculture, where a steady oxygen supply is beneficial. However, it's important to store it properly to maintain its effectiveness and ensure safety.

Can you store it in a poly tank?

Yes, calcium peroxide can be stored in polyethylene tanks. HDPE or XLPE tanks are standard for storing the solid form and for mixing it into a slurry. These materials handle the chemical's properties without needing any special modifications.

Key Issue: Moisture Sensitivity

Calcium peroxide is sensitive to moisture, which triggers its oxygen-releasing reaction. This means it should be kept dry until you're ready to use it. Proper sealing and storage conditions are crucial to prevent premature reaction and maintain its effectiveness.

The safety that actually matters

  • Store in a dry, cool place to prevent unwanted reactions.
  • Use proper protective equipment to avoid skin and eye irritation.
  • Ensure good ventilation to manage any dust or fumes.

Common questions

What type of gasket should I use?
EPDM gaskets are standard for sealing slurry tanks containing calcium peroxide.
Can I use galvanized steel for storage?
No, galvanized steel reacts with calcium peroxide and should not be used.
How long does the oxygen release last?
The oxygen release can last from hours to weeks, depending on the conditions and particle size.

Calcium Peroxide storage tanks from OneSource

For calcium peroxide storage, specify HDLPE_OR_XLPE rated to specific gravity 1.9. Verified, compatibility-matched options:

Confirm chemical compatibility and a ZIP freight quote with our team at 866-418-1777.

Strong oxidizer? Resin and material choice make or break it.

Oxidizers degrade the wrong resins and passivation layers. These guides cover oxidizer-rated construction and containment.

Explore: FRP & Fiberglass Tanks  ·  Double Wall Tanks  ·  Chemical Compatibility

Sources & References

All compatibility ratings, hazard classifications, and chemical identifiers on this page are sourced from authoritative third-party publications. Verify against the original references before final specification.

  1. PubChem Compound Database — entry for Calcium Peroxide (CID 14779, CAS 1305-79-9). pubchem.ncbi.nlm.nih.gov. National Library of Medicine / NCBI. Canonical chemical-identity reference.
  2. Snyder Industries Chemical Resistance Recommendations — system-of-construction guidance for polyethylene chemical-storage tanks at industrial ASTM 1.9 SG design rating. SNY-3041 Chemical Resistance Chart. Snyder Industries, current edition. Resin + fitting + gasket + bolt MOC matrix.
  3. Equistar Technical Tip — Chemical Resistance of Polyethylene — LDPE / MDPE / HDPE rating chart by concentration and temperature, distributed by Enduraplas. enduraplas.com (PDF). Equistar polyethylene resin chemical-resistance data, distributed via Enduraplas.
  4. NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response. nfpa.org. NFPA 704 'fire diamond' health/flammability/instability/special-hazard rating system (0–4 scale).
  5. UN Globally Harmonized System of Classification and Labelling of Chemicals (GHS), current revision. unece.org/transport/ghs. GHS pictograms, signal words, and H-statement codes referenced in this guide.
  6. ASTM D1998 — Standard Specification for Polyethylene Upright Storage Tanks, current edition. astm.org. Cited as the design-specific-gravity standard (typically 1.9 SG) for industrial chemical-service polyethylene tanks.
  7. NIOSH Pocket Guide to Chemical Hazards — occupational exposure limits, PPE, and IDLH data for Calcium Peroxide. cdc.gov/niosh/npg. CDC / NIOSH chemical-specific occupational-safety reference.

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