How does n-pentane react with other chemicals?
n-Pentane is a saturated alkane, so it is relatively stable under normal conditions and does not undergo addition reactions like alkenes. Its key chemical reactions include:
Combustion: Reacts vigorously with oxygen to produce carbon dioxide, water, and heat. The reaction equation is: C5H12+8O2→5CO2+6H2O+Heat. This reaction is the basis of its use as a fuel.
Thermal cracking: When heated to high temperatures (400–600 °C) in the presence of a catalyst, n-pentane breaks down into smaller hydrocarbons (ethylene, propylene, butenes) and alkanes (methane, ethane).
Halogenation: Under ultraviolet (UV) light, n-pentane undergoes free-radical substitution reactions with halogens (chlorine, bromine) to form alkyl halides (e.g., chloropentane, bromopentane). For example: C5H12+Cl2UV lightC5H11Cl+HCl.
Oxidation: Under strong oxidizing conditions (e.g., high-temperature catalytic oxidation), n-pentane can be converted into carboxylic acids (e.g., valeric acid).
What is the boiling point and flash point of n-pentane?
CAS 109-66-0 N-pentane appears as a clear colorless liquid with a petroleum-like odor. Flash point 57 °F. Boiling point 97 °F.
What is the formula for n-pentane?
CAS 109-66-0 n-Pentane, commonly called pentane, is a straight-chain alkane with the molecular formula C5H12.
N-Pentane Structure:
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