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CTAB Storage — Cetyl Trimethylammonium Bromide Tank Selection

Storing Cetyl Trimethylammonium Bromide? Start Here

Cetyl Trimethylammonium Bromide (CTAB) is a versatile cationic surfactant used in personal-care products, molecular biology, and industrial applications. It's a white crystalline solid that forms clear to slightly opalescent solutions when dissolved in water. While it's non-corrosive and chemically stable, it does produce a persistent foam and can irritate skin and eyes. If you're planning to store CTAB, it's important to choose the right tank to avoid issues with foam and residue.

Can you store it in a poly tank?

Yes, you can store CTAB in a poly tank. High-density polyethylene (HDPE) and cross-linked polyethylene (XLPE) are standard choices for technical-grade storage tanks. They handle CTAB solutions well, although a mild surfactant film may form on the inner surface, which is mainly a cosmetic concern.

Handling Foam and Residue

One key issue with storing CTAB is its tendency to produce stable foam and leave a tenacious residue on surfaces. This can make cleaning challenging, especially in applications where cleanliness is critical, such as in personal-care or pharmaceutical environments. Ensuring proper tank design and maintenance can help manage these issues effectively.

The safety that actually matters

  • Use appropriate personal protective equipment to avoid skin and eye irritation.
  • Ensure tanks are designed to manage foam production.
  • Follow proper cleaning protocols to handle surfactant residues.

Common questions

What materials are compatible with CTAB storage?
HDPE, XLPE, polypropylene, PVDF, PTFE, and 316L stainless steel are all compatible.
Can CTAB solutions be stored in stainless steel tanks?
Yes, 316L stainless steel is preferred for compendial-grade applications due to its cleanability and control over extractables.
What gasket materials should be used?
EPDM is standard for most applications, but Viton is recommended for higher temperature or extended service conditions.

CTAB storage tanks from OneSource

For ctab 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?

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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. 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.
  2. 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.
  3. 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).
  4. 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.
  5. 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.
  6. NIOSH Pocket Guide to Chemical Hazards — occupational exposure limits, PPE, and IDLH data for Ctab Cetyl Trimethylammonium Bromide. cdc.gov/niosh/npg. CDC / NIOSH chemical-specific occupational-safety reference.

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