Dipropylene Glycol (DPG) Storage — Dimer Glycol Tank Selection
Storing Dipropylene Glycol? Start Here
Dipropylene Glycol (DPG) is a versatile liquid used in perfumes, cosmetics, and industrial applications. It's colorless, nearly odorless, and mixes well with water. With a low freezing point of -40°F, it can be stored outdoors in most climates without freezing. Whether you're in the fragrance industry or need it for industrial processes, understanding the right storage options is key to maintaining its quality and safety.
Can you store it in a poly tank?
Yes, you can store Dipropylene Glycol in a poly tank. High-density polyethylene (HDPE) tanks are a cost-effective choice for industrial-grade DPG. These tanks are compatible with DPG's properties, making them suitable for most storage needs.
Key Issue: Odor Preservation
For fragrance applications, maintaining the ultra-low odor of DPG is crucial. In such cases, using 316L stainless steel tanks with electropolished interiors and PTFE gaskets is recommended to preserve the high purity and low odor of the DPG LO grade.
The safety that actually matters
- Use appropriate gaskets: Match gaskets to the manufacturer's chart to ensure compatibility.
- Store in a well-ventilated area to avoid harmful inhalation.
- Handle with care to prevent skin and eye contact, as DPG can cause irritation.
Common questions
- Is Dipropylene Glycol flammable?
- DPG has a high flash point of 124°C (255°F), making it less flammable than many solvents.
- Can DPG be stored outdoors?
- Yes, its low freezing point allows for outdoor storage in most climates.
- What materials are compatible with DPG?
- HDPE, stainless steel, and various elastomers like EPDM and Viton are all compatible with DPG.
Dipropylene Glycol (DPG) storage tanks from OneSource
For dipropylene glycol (dpg) storage, specify HDLPE_OR_XLPE rated to specific gravity 1.9. Verified, compatibility-matched options:
- Snyder Industries 22 Gallon ASTM XLPE Black Heavy Duty Vertical Storage Tank (1.9 SG)
- Snyder Industries 150 Gallon XLPE Chemical Feed Station Tank (1.9 SG)
- Snyder Industries 500 Gallon ASTM XLPE Black Double Wall Tank (1.9 SG)
- Snyder Industries 1500 Gallon 45 Degree XLPE Cone Bottom Tank in White (1.9 SG)
- Snyder Industries 5000 Gallon XLPE Vertical Liquid Storage Tank with ASTM Certification (1.9 SG)
Confirm chemical compatibility and a ZIP freight quote with our team at 866-418-1777.
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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.
- PubChem Compound Database — entry for Dipropylene Glycol (CID 134692469, CAS 25265-71-8). pubchem.ncbi.nlm.nih.gov. National Library of Medicine / NCBI. Canonical chemical-identity reference.
- 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.
- 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.
- 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).
- 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.
- 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.
- NIOSH Pocket Guide to Chemical Hazards — occupational exposure limits, PPE, and IDLH data for Dipropylene Glycol. cdc.gov/niosh/npg. CDC / NIOSH chemical-specific occupational-safety reference.