o-xylene

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o-Xylene (also known as 1,2-dimethylbenzene) is an aromatic hydrocarbon compound that is part of the xylene family. It is one of three isomers of xylene, with the "o" prefix standing for ortho, indicating that the two methyl groups (–CH₃) are positioned adjacent to each other on the benzene ring.

Chemical Formula:

  • C₆H₄(CH₃)₂

Properties:

  • Physical Appearance: o-Xylene is a colorless, flammable liquid with a sweet odor. It is slightly less dense than water.
  • Boiling Point: Approximately 144°C (291°F).
  • Melting Point: Around −25.2°C (−13.4°F).
  • Solubility: It is relatively insoluble in water but is soluble in organic solvents like alcohol and ether.
  • Volatility: o-Xylene is highly volatile and evaporates quickly when exposed to air.
  • Uses of o-Xylene:

  • Solvent: It is commonly used as a solvent in paint thinners, coatings, adhesives, and varnishes due to its ability to dissolve many substances.
  • Chemical Intermediate: o-Xylene is used in the production of phthalic anhydride, which is a precursor to plasticizers, polyester resins, and other chemicals.
  • In the Manufacturing of Terephthalic Acid: o-Xylene is also used in the production of terephthalic acid for making polyester fibers and plastic bottles (PET).
  • Laboratory Use: It is used in laboratories for various chemical syntheses and as a degreasing agent.
  • Fuel Additive: It can be found in certain fuels as a component to enhance combustion properties.
  • Safety and Handling:

    • o-Xylene can be harmful if inhaled or ingested and may cause irritation to the eyes, skin, and respiratory system.
    • Precautions: Proper ventilation and protective gear should be used when handling o-xylene to avoid exposure.
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    o-Xylene (also known as 1,2-dimethylbenzene) is an aromatic hydrocarbon compound that is part of the xylene family. It is one of three isomers of xylene, with the "o" prefix standing for ortho, indicating that the two methyl groups (–CH₃) are positioned adjacent to each other on the benzene ring.

    Chemical Formula:

    • C₆H₄(CH₃)₂

    Properties:

  • Physical Appearance: o-Xylene is a colorless, flammable liquid with a sweet odor. It is slightly less dense than water.
  • Boiling Point: Approximately 144°C (291°F).
  • Melting Point: Around −25.2°C (−13.4°F).
  • Solubility: It is relatively insoluble in water but is soluble in organic solvents like alcohol and ether.
  • Volatility: o-Xylene is highly volatile and evaporates quickly when exposed to air.
  • Uses of o-Xylene:

  • Solvent: It is commonly used as a solvent in paint thinners, coatings, adhesives, and varnishes due to its ability to dissolve many substances.
  • Chemical Intermediate: o-Xylene is used in the production of phthalic anhydride, which is a precursor to plasticizers, polyester resins, and other chemicals.
  • In the Manufacturing of Terephthalic Acid: o-Xylene is also used in the production of terephthalic acid for making polyester fibers and plastic bottles (PET).
  • Laboratory Use: It is used in laboratories for various chemical syntheses and as a degreasing agent.
  • Fuel Additive: It can be found in certain fuels as a component to enhance combustion properties.
  • Safety and Handling:

    • o-Xylene can be harmful if inhaled or ingested and may cause irritation to the eyes, skin, and respiratory system.
    • Precautions: Proper ventilation and protective gear should be used when handling o-xylene to avoid exposure.

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