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词汇 toluene
释义

Definition of toluene in English:

toluene

nounˈtɒljʊiːnˈtɑljuˌin
mass nounChemistry
  • A colourless liquid hydrocarbon present in coal tar and petroleum and used as a solvent and in organic synthesis.

    〔化〕甲苯

    Alternative name: methylbenzene; chemical formula: C₆H₅CH₃

    Example sentencesExamples
    • The raw materials for today's dyes are mainly aromatic hydrocarbons: benzene, toluene, naphthalene, anthracene, pyrene, and others.
    • Toxic chemicals such as benzene, toluene and methyl benzene were included in the list.
    • In combination with nitric acid, toluene gives trinitrotoluene.
    • In a second method, toluene is mixed with nitric acid and oxidized to produce benzoic acid.
    • The powdered bark can also be treated with solvents, such as toluene, or amyl alcohol to extract the quinine.

Origin

Late 19th century: from tolu + -ene.

Definition of toluene in US English:

toluene

nounˈtɑljuˌinˈtälyo͞oˌēn
Chemistry
  • A colorless liquid hydrocarbon present in coal tar and petroleum and used as a solvent and in organic synthesis.

    〔化〕甲苯

    Alternative name: methylbenzene; chemical formula: C₆H₅CH₃

    Example sentencesExamples
    • Toxic chemicals such as benzene, toluene and methyl benzene were included in the list.
    • In combination with nitric acid, toluene gives trinitrotoluene.
    • The powdered bark can also be treated with solvents, such as toluene, or amyl alcohol to extract the quinine.
    • The raw materials for today's dyes are mainly aromatic hydrocarbons: benzene, toluene, naphthalene, anthracene, pyrene, and others.
    • In a second method, toluene is mixed with nitric acid and oxidized to produce benzoic acid.

Origin

Late 19th century: from tolu + -ene.

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