What is C8H8? Important knowledge about C8H8.

  1. Definition of C8H8:
    C8H8 is the molecular formula of Styrene, also known as vinylbenzene, phenylethene, or Ethenylbenzene. In English language, it is also known by the name Styrene. The C8H8 molecule consists of 8 Carbon (C) atoms and 8 Hydrogen (H) atoms, with atomic masses of 12.01 and 1.008 atomic mass units respectively. The C8H8 molecule has a flat structure with a vinyl group attached to a phenyl group. The ion of C8H8 does not exist as it does not ionize.

  2. Properties of C8H8:
    C8H8 is liquid at room condition, colorless to pale yellow. Its odor is quite peculiar, similar to the smell of plastic. The pH value of C8H8 is not defined because it is not a liquid or a mixture containing water. The chemical properties of C8H8 include the ability to form polystyrene through polymerization reaction.

  3. Common chemical equations:
    C8H8 does not usually participate in reactions with metals, acids, nonmetals and salts. The main reaction of C8H8 is the polymerization reaction to form polystyrene.

  4. Synthesis of C8H8:
    C8H8 is typically synthesized in the laboratory and industry from ethylene and benzene via the Friedel-Crafts alkylation reaction. In addition, it can also be synthesized from toluene and oil refining via the dehydrogenation reaction.

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