Isopentane
Isopentane
Formula: C5H12, R-601a
CAS No: 78-78-4
Isopentane (C5H12) is a colorless, flammable liquid with a mild gasoline-like odor. It is a branched-chain alkane and one of the isomers of pentane. Because of its volatility and solubility properties, it is widely used across energy, industrial, chemical, and laboratory applications.
Applications include:
-
Component in gasoline blending to increase volatility and octane rating.
-
Working fluid in geothermal power production, where it vaporizes to drive turbines.
-
Solvent for dissolving organic compounds in industrial and laboratory processes.
-
Aerosol propellant, replacing substances with high ozone depletion or global warming potential.
-
Refrigerant in specialty systems, offering an alternative to high-GWP refrigerants.
-
Foam blowing agent in the manufacture of expanded polystyrene (EPS).
-
Cleaning agent for electronics and precision components.
-
Cryogenic freezing medium for biological samples, enabling rapid and uniform cooling.
At EFC Gases & Advanced Materials, we supply commercial grade isopentane with a focus on purity, reliability, and customer-specific requirements. Our expertise ensures dependable performance across industrial, energy, and specialty chemical markets.
Applications
Specifications
Further Specifications
Cylinder Sizes
- Blend into gasoline to improve volatility and octane rating.
- Drive turbines as a working fluid in geothermal power plants.
- Dissolve organic compounds as a solvent in industrial processes.
- Replace high-GWP substances as an aerosol propellant and refrigerant.
- Produce expanded polystyrene as a foam blowing agent.
| Grade 2 | Grade 2.5 | |
|---|---|---|
| Purity | 99.0% | 99.5% |
| Other Hydrocarbons | < 1% | < 0.5% |
| Sulfur | < 1 ppmv | < 1 ppmv |
| Moisture | < 5 ppmv | < 5 ppmv |
| Total Impurities | < 1 % | < 0.5 % |
| Chemical & Physical Properties | |
|---|---|
| Molecular Weight | 72.15 |
| Pressure @ 100° F | 20.1 psia |
| Flammability Limits | 1.4 - 7.6% in Air |
| Valve Outlet | CGA 510 LB CGA 170 |
| Shipping Information | |
|---|---|
| DOT Name | Pentanes |
| Hazard Class | 3 |
| DOT No. | UN 1265 |
| Packing Group | I |
| DOT Label | Flammable Liquid |
| CAS No. | 78-78-4 |
| 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. Individual impurities may vary slightly.
