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Sodium Sesquicarbonate Storage — Trona Tank Selection

Storing Sodium Sesquicarbonate? Start Here

Sodium sesquicarbonate is a versatile chemical used in detergent, pool maintenance, and water-softening applications. It is a stable, non-flammable compound that sits between sodium carbonate and sodium bicarbonate in terms of alkalinity, making it perfect for situations where a mild alkaline solution is needed. Its solutions are typically prepared at 5-10% concentration and can be stored for over six months if kept covered.

Can you store it in a poly tank?

Yes, you can store sodium sesquicarbonate in polyethylene tanks. HDPE or XLPE tanks are standard for this purpose, as the chemical is not corrosive to most plastics and metals. Just avoid using aluminum, as it can corrode slowly.

Watch out for aluminum contact

While sodium sesquicarbonate is gentle on most materials, it can slowly corrode aluminum. Ensure that aluminum is not used in any part of your storage system to prevent long-term damage.

The safety that actually matters

  • Wear gloves and goggles to protect against skin and eye irritation.
  • Ensure proper ventilation to avoid respiratory discomfort.
  • Regularly inspect tanks and fittings for integrity and leaks.

Common questions

Is sodium sesquicarbonate flammable?
No, it is non-flammable.
What materials are best for gaskets?
EPDM gaskets are standard for this chemical.
How long can I store its solutions?
Solutions can maintain their properties for over six months if stored properly.

Sodium Sesquicarbonate storage tanks from OneSource

For sodium sesquicarbonate 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.

Designing the storage system, not just picking a tank?

Vendor-neutral engineering guides from our custom fabrication team - material of construction, containment, and code, matched to your chemistry.

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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 Sodium Sesquicarbonate (CID 10791, CAS 533-96-0). 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 Sodium Sesquicarbonate. cdc.gov/niosh/npg. CDC / NIOSH chemical-specific occupational-safety reference.

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