Propylene Chemical Storage Specifications

Compliant storage and rental solutions for Propylene (C3H6O). EPA, OSHA, and NFPA guidance for containment, segregation, and fire protection — with rental buildings matched to this material.

Flammable hazardFlammable Storage

Chemical formula

Propylene molecular formula

About Propylene

Almost two-thirds of propylene is used to make polypropylene, 2 a plastic resin used to make apparel, plastic squeeze bottles, outdoor furniture and many other products. Propylene oxide is used to make furniture, automotive parts, boats and recreational vehicles, appliances, solvents and resins.

Structured hazard data

Hazard class
FLAMMABLE GASES - Category 1 GASES UNDER PRESSURE - Liquefied gas
Storage category
Flammable Storage
Flammable
Yes
Flash point
Closed cup: -107.78°C (-162°F)
Storage temperature
Ambient
Recommended extinguishing agent
Dry Chemical
Compatibility / segregation
Solvents

Fire Suppression System

Dry Chemical fire suppression is recommended for Propylene

  • Water

    Water

  • Dry Chemical

    Dry Chemical · Recommended

  • CO₂ / Other

    CO₂ / Other

Guidance: Dry Chemical fire suppression is generally recommended for Propylene (C3H6O). *Please consult your raw material manufacturer's safety data sheet (SDS) and your local authority having jurisdiction to verify the most adequate fire suppression extinguisher for your specific storage or use.

Additional extinguishing notes: Use an extinguishing agent suitable for the surrounding fire

Always confirm extinguishing agents against the manufacturer SDS and your authority having jurisdiction before specifying a rental building fire-suppression package.

Storage & segregation guidance

Compliant storage and rental solutions for Propylene should account for its listed hazards (FLAMMABLE GASES - Category 1 GASES UNDER PRESSURE - Liquefied gas), climate control needs (Ambient), and segregation requirements. Solvents

Review NFPA 30 flammable liquid storage requirements and Fire-rated chemical storage rental when designing fire rating, containment, and building selection.

Properties: Melting point Relative density Solubility Gas. [Compressed gas.] -185°C (-301°F) Not applicable. Not available. Odor Mild. pH Color Colorless. Evaporation rate Not available. Auto-ignition temperature Flash point 455°C (851°F) Closed cup: -107.78°C (-162°F) 1.77 Not available. Viscosity Not applicable. Odor threshold Not available. Partition coefficient: noctanol/water : : : : : : : : : : : : : Appearance Boiling point : -48°C (-54.4°F) Flammability (solid, gas) : Extremely flammable in the presence of the following materials or conditions: open flames, sparks and static discharge and oxidizing materials. Lower and upper explosive (flammable) limits : Lower: 2% Upper: 11% Decomposition temperature : Not available. Heat of combustion : -45803592 J/kg Aerosol product Solubility in water : 0.2 g/l Molecular weight : 42.09 g/mole Flow time (ISO 2431) : Not available. Vapor pressure Vapor density 1.5 (Air = 1) : 136.6 (psig) : Specific Volume (ft 3 /lb) : 9.0909 Gas Density (lb/ft 3) : 0.11 (25°C / 77 to °F) Critical temperature : 91.85°C (

Matched to this chemical

Recommended storage solutions for Propylene

Fire rating, footprint, and containment options from the US Hazmat Rentals fleet — sized for compliant chemical storage.

  • Fire-rated4 HourChemical Storage

    FireSAFE 4X

    • 4-Hour Fire-Rated
    • 8 ft x 40 ft
    • 57 Barrels
    • 55 Gal Storage Drums
    • 228 Square Feet storage
    View product
  • Fire-rated4 HourChemical Storage

    FireSAFE 4X

    • 4-Hour Fire-Rated
    • 8 ft x 10 ft
    • 12 Barrels
    • 55 Gal Storage Drums
    • 48 Square Feet storage
    View product
  • Fire-rated4 hourChemical Tote Storage

    Single Tote & Pallet Storage

    • 4-Hour Fire-Rated 6' Deep 1-Tote-Deep
    View product

Material handling

How do you manage your bulk chemical storage?

US Hazmat Rentals buildings are designed around the primary storage formats teams use in the field — each path opens the matching storage solution on ushazmatrentals.com.

We have solutions designed for your workflow process needs.

Frequently asked questions

How should Propylene be stored?

Store Propylene in EPA-, OSHA-, and NFPA-compliant containment suited to its hazards (FLAMMABLE GASES - Category 1 GASES UNDER PRESSURE - Liquefied gas). Climate range guidance: Ambient. Compatibility notes: Solvents US Hazmat Rentals provides compliant chemical storage buildings available for rental.

Is Propylene flammable?

Yes — Propylene is flagged as a flammable hazard in this database (Yes). Flash point: Closed cup: -107.78°C (-162°F). Use fire-rated storage and follow NFPA 30 / applicable flammable-liquid rules where they apply.

What hazard class is Propylene?

Propylene is listed as: FLAMMABLE GASES - Category 1 GASES UNDER PRESSURE - Liquefied gas. Confirm classification on the manufacturer SDS before designing storage.

What fire suppression is recommended for Propylene?

Dry Chemical fire suppression is generally recommended for Propylene (C3H6O). *Please consult your raw material manufacturer's safety data sheet (SDS) and your local authority having jurisdiction to verify the most adequate fire suppression extinguisher for your specific storage or use.

Is compliant Propylene storage available for rent?

Yes. US Hazmat Rentals offers EPA-, OSHA-, and NFPA-compliant chemical storage buildings and containment that can be matched to Propylene. Request sizing and compliance guidance at https://ushazmatrentals.com/chemical-storage-quote-request/.