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单词 thionyl
释义

Definition of thionyl in English:

thionyl

nounˈθʌɪənʌɪlˈθʌɪənɪlˈTHēəˌnil
Chemistry
  • as modifier Of or denoting the divalent radical SO.

    thionyl chloride
    Example sentencesExamples
    • Schedule 3 comprises a number of toxic or precursor chemicals with widespread industrial uses, such as phosgene, hydrogen cyanide, phosphorus trichloride and thionyl chloride.
    • An excess of the dry commercially available alcohol was cooled to 0°C, and freshly distilled thionyl chloride was added.
    • The methyl halide can be produced by reacting methanol with phosphorous halides, hydrogen halides, or, in the case of methyl chloride, thionyl chloride.
    • The resulting ester was saponified under basic conditions to the free acid, converted to the acyl chloride with thionyl chloride, and then to the amide with anhydrous ammonia gas.
    • One milliliter of dry methanol was chilled on dry ice and 0.25 mL thionyl chloride added slowly.

Origin

1857: so named by H. Schiff (see Schiff base).

 
 

Definition of thionyl in US English:

thionyl

nounˈTHēəˌnil
Chemistry
  • as modifier Of or denoting the divalent radical SO.

    thionyl chloride
    Example sentencesExamples
    • The methyl halide can be produced by reacting methanol with phosphorous halides, hydrogen halides, or, in the case of methyl chloride, thionyl chloride.
    • One milliliter of dry methanol was chilled on dry ice and 0.25 mL thionyl chloride added slowly.
    • Schedule 3 comprises a number of toxic or precursor chemicals with widespread industrial uses, such as phosgene, hydrogen cyanide, phosphorus trichloride and thionyl chloride.
    • The resulting ester was saponified under basic conditions to the free acid, converted to the acyl chloride with thionyl chloride, and then to the amide with anhydrous ammonia gas.
    • An excess of the dry commercially available alcohol was cooled to 0°C, and freshly distilled thionyl chloride was added.

Origin

1857: so named by H. Schiff (see Schiff base).

 
 
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更新时间:2024/11/10 22:03:52