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单词 dihydroxyacetone
释义

Definition of dihydroxyacetone in English:

dihydroxyacetone

nounˌdʌɪhʌɪdrɒksɪˈasɪtəʊnˌdīhīˌdräksēˈasətōn
mass nounChemistry
  • A synthetic compound with strong reducing properties, used in lotions for colouring the skin in sunlight.

    Chemical formula: (CH₂OH)CO

    Example sentencesExamples
    • Researchers have found that dihydroxyacetone, a colorless sugar, interacts with dead cells located in the upper layer of the epidermis to produce a harmless color change that lasts about a week.
    • Artificial tanning products use chemicals such as dihydroxyacetone that react with proteins in the skin to create a brown color.
    • Recently it has been proposed to use dihydroxyacetone as a fluorescent marker for these events.
    • Some beauty salons have recorded a 20% increase in sales of the treatment, which uses the colour additive dihydroxyacetone.
    • All self-tanners contain a chemical called dihydroxyacetone, or DHA, which temporarily stains (within about an hour) the uppermost layer of your skin, called the stratum corneum.

Origin

Late 19th century: from dihydroxy- (in the sense 'containing two hydroxyl groups in the molecule') + acetone.

 
 

Definition of dihydroxyacetone in US English:

dihydroxyacetone

nounˌdīhīˌdräksēˈasətōn
Chemistry
  • A synthetic compound with strong reducing properties, used in lotions for coloring the skin in sunlight.

    Chemical formula: (CH₂OH)CO

    Example sentencesExamples
    • Some beauty salons have recorded a 20% increase in sales of the treatment, which uses the colour additive dihydroxyacetone.
    • Recently it has been proposed to use dihydroxyacetone as a fluorescent marker for these events.
    • Artificial tanning products use chemicals such as dihydroxyacetone that react with proteins in the skin to create a brown color.
    • All self-tanners contain a chemical called dihydroxyacetone, or DHA, which temporarily stains (within about an hour) the uppermost layer of your skin, called the stratum corneum.
    • Researchers have found that dihydroxyacetone, a colorless sugar, interacts with dead cells located in the upper layer of the epidermis to produce a harmless color change that lasts about a week.

Origin

Late 19th century: from dihydroxy- (in the sense ‘containing two hydroxyl groups in the molecule’) + acetone.

 
 
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更新时间:2024/9/21 15:33:37