In the manufacturing process of polyurethane foam and similar substances, pentane is the basic element.
Pentane (C5H12): big amounts of this substance are used in production processes, and it is released by finished products during 15 days after manufacturing. That is the reason why it is stored in suitable rooms before being marketed.
C5H12: Pentane is an aliphatic hydrocarbon which comes from fractional distillation of oil and natural gas. At ordinary temperature and pressure, it is a colourless, volatile liquid whose smell is similar to gasoline one. Both pentane and its vapours are extremely flammable and form potentially explosive mixtures with air.