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Ethyl Alcohol (Ethanol) Storage — Distillery, Fuel, Sanitizer, Pharma

Storing Ethyl Alcohol? Start Here

Ethyl alcohol, also known as ethanol or grain alcohol, is widely used in industries ranging from beverage distilleries to fuel production and cosmetics. It's a versatile chemical, but storing it safely requires careful consideration. Whether you're dealing with 35% or pure 100% ethanol, high-density polyethylene (HDPE) tanks are up to the task. But remember, the real challenge lies in managing its flammability and adhering to federal regulations, not just choosing the right tank.

Can you store it in a poly tank?

Yes, you can store ethyl alcohol in HDPE tanks at both 35% and 100% concentrations. Polyethylene handles ethanol effectively, making it a reliable choice for long-term storage. However, always consider the flammable nature of ethanol and comply with relevant safety codes.

Key Issue: Flammability and Regulations

While HDPE tanks are chemically compatible with ethanol, the main concerns are its flammability and the regulatory requirements. Ethanol is highly flammable, especially at concentrations above 50%. This means you'll need to design your storage system with fire safety in mind, including proper venting and grounding. Additionally, compliance with federal excise tax and Alcohol and Tobacco Tax and Trade Bureau (TTB) regulations is crucial for legal storage and use.

The safety that actually matters

  • Ensure proper bonding and grounding to prevent static electricity buildup.
  • Install appropriate venting to manage ethanol vapors safely.
  • Follow TTB regulations and maintain accurate records for compliance.

Common questions

Is HDPE suitable for storing pure ethanol?
Yes, HDPE is suitable for storing pure ethanol and is widely used in the industry.
What gaskets should I use?
Viton gaskets are preferred for 100% ethanol, while EPDM is acceptable for 35–70% concentrations.
How do I prevent static electricity hazards?
Bond and ground all connections, and use a dip tube for splash-free filling.

Ethyl Alcohol (Ethanol) storage tanks from OneSource

For ethyl alcohol (ethanol) storage, specify HDLPE 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.

Flammable solvent? Think recovery, containment, and grounding.

Flammable and volatile solvents add recovery, vapor, and ignition-control questions on top of material choice. Guides from our fabrication team:

Explore: Solvent Recovery  ·  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 Ethyl Alcohol (CID 702, CAS 64-17-5). 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 Ethyl Alcohol. cdc.gov/niosh/npg. CDC / NIOSH chemical-specific occupational-safety reference.

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