Isopentane CAS 78-78-4

Isopentane, also known as 2-methylbutane, is a colorless, flammable liquid with the chemical formula $$C_5H_{12}$$ and a CAS number of 78-78-4. It is classified as an alkane, specifically a branched-chain alkane where a methyl group is substituted at the second position of butane.
Physical Properties:
Molecular Weight: Approximately 72.15 g/mol.
Boiling Point: Ranges from 27.8 to 28.2 °C (81.9 to 82.7 °F).
Melting Point: Between -161 to -159 °C.
Density: Approximately 616 mg/mL.
Flash Point: -51 °C, indicating it is highly flammable.
Autoignition Temperature: 420 °C.
Applications:
Isopentane is primarily used as a refrigerant and is involved in various thermodynamic cycles, such as in air conditioning and refrigeration systems. It is also utilized in the production of expanded polystyrene and as a solvent in chemical processes.
Safety Considerations:
Due to its flammability, isopentane poses significant safety risks. It can form explosive mixtures with air, and precautions must be taken to avoid open flames and sparks when handling it.
In summary, isopentane (CAS 78-78-4) is a versatile chemical with important applications in refrigeration and as a solvent, but it requires careful handling due to its flammable nature.