Home › Chemicals › Pentane (n-Pentane) CAS 109-66-0: Pentane (n-Pentane) (C5H12) Identity CAS Number 109-66-0 Molecular Formula C5H12 IUPAC Name pentane Molecular Weight 72.15 g/mol SMILES CCCCCSynonyms n-pentane, amyl hydride, skellysolve A
2D Structure
Physical Properties Density 0.626 g/mL at 25°C Boiling Point 36.1°C Melting Point -129.8°C Flash Point -49.0°C Vapor Pressure 68.3 kPa at 20°C Refractive Index nD = 1.358 Dielectric Constant ε = 1.84
Safety & GHS Classification Flammable Irritant Health Hazard GHS09
H224: Extremely flammable liquid and vapor H304: May be fatal if swallowed and enters airways H336: May cause drowsiness or dizziness H411: Toxic to aquatic life with long lasting effects Storage: EXTREME FIRE HAZARD — store in flammable liquid storage cabinet. Very low boiling point (36°C). Use explosion-proof equipment. Ground containers during transfer. Vapors can travel to ignition sources.
Material Compatibility Matrix Plastics Material Rating PTFE Excellent PVC Fair PE Good PP Good PEEK Excellent PVDF Good
Rubbers Material Rating Viton Severe Effect NBR Severe Effect EPDM Severe Effect Silicone Poor FKM Severe Effect
Metals Material Rating Stainless 316 Excellent Aluminum Excellent Copper Excellent Brass Excellent
Applications Polystyrene foam blowing agent Laboratory solvent (non-polar extractions) Geothermal power plant working fluid Refrigerant (R601) Pesticide formulation Solvent for lipid extraction Chromatography solvent External References: PubChem
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