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n-Pentane

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n-Pentane

Formula: C5H12

CAS No: 109-66-0

n-Pentane (C5H12) is a colorless, highly volatile hydrocarbon liquid widely used as a blowing agent, solvent, and process medium in industrial applications. Its low boiling point and rapid evaporation make it effective in systems requiring controlled vaporization and heat transfer.

In manufacturing environments, n-pentane is primarily used in polymer and foam production, where it functions as a blowing agent to create cellular structures in materials such as polystyrene and polyurethane. It is also used as a non-polar solvent and process medium, supporting extraction, purification, and polymerization processes.

Applications Include:

  • Used as a blowing agent in the production of polystyrene (EPS/XPS) and polyurethane foams.
  • Serves as a process medium and cooling agent in polymer and petrochemical manufacturing.
  • Used as a non-polar solvent in chemical processing, extraction, and purification applications.
  • Applied in laboratory environments, including chromatography and analytical procedures.
  • Used in fuels and specialty applications, including refrigerant systems (R-601) and industrial formulations.

EFC Gases & Advanced Materials supplies high-purity n-pentane with tight control of moisture and critical impurities, supported by rigorous analytical verification to ensure consistent performance in demanding applications.

Applications
Specifications
Further Specifications
Cylinder Sizes
  • Produce foam insulation (EPS, polyurethane).
  • Support polymer processing and cooling.
  • Dissolve non-polar compounds in chemical processing.
  • Enable laboratory and chromatography use.
  • Use in fuels, refrigerant (R-601), and specialty applications.
Grade 2 Grade 2.5
Purity 99.0 % 99.5 %
Other Hydrocarbons < 1 % < 0.5 %
Sulfur < 1 ppmv < 100 ppmv
Moisture < 5 ppmv < 5 ppmv
Total Impurities < 1 % < 0.5 %
Chemical & Physical Properties
Molecular Weight 72.15
Pressure @ 100° F 15.3 psia
Flammability Limits 1.4 – 7.8% in Air
Valve Outlet CGA 510 LB CGA 170
Shipping Information
DOT Name Pentanes
Hazard Class 3
DOT No. UN 1265
Packaging Group II
DOT Label Flammable Liquid
CAS No. 109-66-0
Cylinder Size Fill Weight (lb)
1/2 Ton 570
LP30 136
LP15 80
LP05 27
LP01 7
49L/Size 300 60
44L/Size 200 50
16L/Size 80 19
7L/Size 35 8

Moisture level guaranteed only when EFC Gases & Advanced Materials prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated. Assay excludes Nitrogen.
Product sold on the basis of total impurities. Individual impurities may vary slightly.