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词汇 benzoic acid
释义

Definition of benzoic acid in English:

benzoic acid

nounbɛnˈzəʊɪkbenˌzō-ik ˈasid
mass nounChemistry
  • A white crystalline substance present in benzoin and other plant resins, used as a food preservative.

    〔化〕苯(甲)酸,安息香酸

    Chemical formula: C₆H₅COOH

    Example sentencesExamples
    • The most commonly found preservatives in the food samples were benzoic acid and sorbic acid.
    • In a second method, toluene is mixed with nitric acid and oxidized to produce benzoic acid.
    • Compounds that protect against sun damage include such things as titanium dioxide, para amino benzoic acid, and benzyl cinnamate.
    • In addition, probiotics exert protective effects through production of hydrogen peroxide and benzoic acid, which inhibit many pathogenic, acid sensitive bacteria.
    • Benzoyl peroxide rapidly decomposes into benzoic acid and hydrogen peroxide and is also safe.

Origin

Late 18th century: from benzoin + -ic.

Definition of benzoic acid in US English:

benzoic acid

nounbenˌzō-ik ˈasid
Chemistry
  • A white crystalline substance present in benzoin and other plant resins, used as a food preservative.

    〔化〕苯(甲)酸,安息香酸

    Chemical formula: C₆H₅COOH

    Example sentencesExamples
    • In a second method, toluene is mixed with nitric acid and oxidized to produce benzoic acid.
    • Compounds that protect against sun damage include such things as titanium dioxide, para amino benzoic acid, and benzyl cinnamate.
    • Benzoyl peroxide rapidly decomposes into benzoic acid and hydrogen peroxide and is also safe.
    • The most commonly found preservatives in the food samples were benzoic acid and sorbic acid.
    • In addition, probiotics exert protective effects through production of hydrogen peroxide and benzoic acid, which inhibit many pathogenic, acid sensitive bacteria.

Origin

Late 18th century: from benzoin + -ic.

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