methylbenzene

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methylbenzene

A chemist carefully pours methylbenzene into a beaker.

Definition

Noun: 1. A colorless, flammable, aromatic hydrocarbon liquid: Methylbenzene is a volatile organic compound with the chemical formula C₆H₅CH₃. It is a common industrial solvent and a precursor in chemical synthesis. 2. A solvent and chemical feedstock: It is widely used to dissolve other substances, such as paints, rubber, and adhesives, and is a starting material for producing other chemicals, including benzene, xylene, and toluene diisocyanate (used in polyurethane production).

Usage Examples
  • Noun:
    • The laboratory used methylbenzene to dissolve the organic compound for analysis.
    • Proper ventilation is essential when handling methylbenzene due to its flammable vapors.
    • This high-octane fuel additive contains a small percentage of methylbenzene.
Advanced Usage
  • In chemical nomenclature: "Methylbenzene" is the systematic IUPAC name for the compound more commonly known as "toluene." The name specifies a benzene ring with a single methyl group (-CH₃) substituent.
  • In industrial contexts: The term is often used in technical data sheets and scientific literature to specify the pure compound, distinguishing it from commercial mixtures or derivatives.
Variants and Related Words
  • Toluene (n): The most common synonym for methylbenzene, frequently used in industrial and commercial settings.
  • Phenylmethane (n): An alternative, less common systematic name for the same compound.
  • Toluol (n): An archaic term for toluene/methylbenzene, sometimes still found in older technical documents.
Synonyms
  • Toluene: The standard common name.
  • Solvent naphtha (in some contexts): May refer to a mixture containing methylbenzene/toluene.
Related Phrases and Compounds
  • Methylbenzene derivative (n): Any compound chemically derived from methylbenzene, such as nitrotoluene or benzyl alcohol.
  • Toluene diisocyanate (TDI) (n): An important industrial chemical produced from methylbenzene, used primarily to make polyurethane foam.
methylbenzene

A chemist carefully pours methylbenzene into a beaker.

Noun
  1. a colorless flammable liquid obtained from petroleum or coal tar; used as a solvent for gums and lacquers and in high-octane fuels

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