n-Pentane
- C5H12
- CAS Number 109-66-0
- UN1265 (gas)
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Liquid / Gas Volumes
Calculate the volume or mass of a quantity of gas or liquid
Liquid Phase
At boiling point at 1.013 bar
Gas Phase
In standard conditions (1.013 bar, 15°C)
Physical Properties
Molecule phase diagram showing the transition phases between solid, liquid and gas as a function of temperature and pressure
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- Molar mass 72.149 g/mol
- Content in dry air /
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Critical Point
- Temperature 196.55 °C
- Pressure 33.7 bar
- Density 230.51 kg/m³
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Triple Point
- Temperature -129.73 °C
- Pressure 7.634E-7 bar
Pressure 1.013 bar
Latent heat of fusion (at melting point) | 116.447 kJ/kg |
Melting point | - 129.73 °C |
Pressure 1.013 bar
Boiling point | 36.06 °C |
Latent heat of vaporization (at boiling point) | 357.58 kJ/kg |
Liquid density (at boiling point) | 609.71 kg/m3 |
Applications
Examples of uses of this molecule in Industry and Healthcare
Safety & Compatibility
GHS02
Flammable
GHS07
Health hazards
GHS08
Serious health hazard
GHS09
Hazardous to the environment
Autoignition Temperature, Flammability Limits & Flash Point
Europe (according to EN1839 for Limits and EN 14522 for autoignition temperature)
Autoignition temperature (Chemsafe) | 260 °C |
Flash point (Chemsafe) | <-20 °C |
Lower flammability limit (IEC 80079-20-1) | 1.1 vol% |
Upper flammability limit (IEC 80079-20-1) | 8.7 vol% |
US (according to ASTM E681 for Limits and ASTM E659 for autoignition temperature)
Autoignition temperature (NFPA 325) | 260 °C |
Flash point (NPFA 325) | <-40 °C |
Lower flammability limit (NFPA 325) | 1.5 vol% |
Upper flammability limit (NFPA 325) | 7.8 vol% |
Threshold of toxicity
ILV-8h EU (at Patm and 293.15 K) | 3000 mg/m3 or 1000 ppm |
PEL USA OSHA (vol) | 1000 ppm |
VLEP 8h France (at Patm and 293.15 K) | 3000 mg/m3 or 1000 ppm |
Odor
Gasoline
Metals
Aluminium | No data |
Brass | No data |
Monel | No data |
Copper | No data |
Ferritic Steel | No data |
Stainless steel | No data |
Zinc | No data |
Titanium | No data |
Plastics
Polytetrafluoroethylene | No data |
Polychlorotrifluoroethylene | No data |
Polyvinylidene fluoride | No data |
Polyvinyl chloride | No data |
Ethylene tetrafluoroethylene | No data |
Polycarbonate | No data |
Polyamide | No data |
Polypropylene | No data |
Elastomers
Butyl (isobutene- isoprene) rubber | No data |
Nitrile rubber | No data |
Chloroprene | No data |
Chlorofluorocarbons | No data |
Silicone | No data |
Perfluoroelastomers | No data |
Fluoroelastomers | No data |
Neoprene | No data |
Polyurethane | No data |
Ethylene-Propylene | No data |
Lubricants
Hydrocarbon based lubricant | No data |
Fluorocarbon based lubricant | No data |
Materials compatibility
Learn More
More information
N-Pentane is an organic compound with the formula C5H12. Pentanes are components of some fuels and are employed as specialty solvents in the laboratory. Because of its low boiling point, low cost, and relative safety, pentanes are used as a working medium in geothermal power stations in some blended refrigerants. Pentanes are also an active ingredient in some pesticides.