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单词 diphenylamine
释义

Definition of diphenylamine in English:

diphenylamine

noundʌɪˈfɛnɪləˌmiːndʌɪˈfiːnʌɪləˌmiːndīˈfenl-əˌmēn
mass nounChemistry
  • A synthetic crystalline compound with basic properties, used in making azo dyes and as an insecticide and larvicide.

    〔化〕二苯胺

    Chemical formula: (C₆H₅)₂NH

    Example sentencesExamples
    • Mix the diphenylamine reagent, as above, and split it into two aliquots before adding the acetaldehyde.
    • A most probable number method using diphenylamine as a color indicator was employed to enumerate denitrifying bacteria, which produce enzymes for conversion of nitrate to nitrite and nitrite to ammonia in soil.
    • The resulting product could be rolled into sheets, cut into squares and strips, and stabilized by adding up to 2 percent diphenylamine.
    • However, fluorescence has also been used to evaluate new storage practices, such as hydrocooling of cucumber and treatment of green bell pepper with the antioxidant diphenylamine to decrease chill-induced pitting.
    • This effect of diphenylamine has been interpreted as blocking a series of dehydrogenation steps in the transformation of the more saturated to the less saturated carotenoids.

Definition of diphenylamine in US English:

diphenylamine

noundīˈfenl-əˌmēn
Chemistry
  • A synthetic crystalline compound with basic properties, used in making azo dyes and as an insecticide and larvicide.

    〔化〕二苯胺

    Chemical formula: (C₆H₅)₂NH

    Example sentencesExamples
    • A most probable number method using diphenylamine as a color indicator was employed to enumerate denitrifying bacteria, which produce enzymes for conversion of nitrate to nitrite and nitrite to ammonia in soil.
    • Mix the diphenylamine reagent, as above, and split it into two aliquots before adding the acetaldehyde.
    • However, fluorescence has also been used to evaluate new storage practices, such as hydrocooling of cucumber and treatment of green bell pepper with the antioxidant diphenylamine to decrease chill-induced pitting.
    • The resulting product could be rolled into sheets, cut into squares and strips, and stabilized by adding up to 2 percent diphenylamine.
    • This effect of diphenylamine has been interpreted as blocking a series of dehydrogenation steps in the transformation of the more saturated to the less saturated carotenoids.
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更新时间:2024/10/19 17:20:01