dichloromethane

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    A1 初級
    n. (u.)不可數名詞二氯甲烷
    Dichloromethane is a common solvent in chemical reactions.
    n. (u.)不可數名詞二氯甲烷 (工業用途)
    The industrial production of dichloromethane requires strict safety protocols.
    n. (u.)不可數名詞二氯甲烷 (實驗室)
    In the laboratory, dichloromethane is used for extracting organic compounds.
    n. (u.)不可數名詞二氯甲烷 (化學)
    The chemical formula for dichloromethane is CH2Cl2.

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    質譜法 MS (Mass Spectrometry MS)

    07:59質譜法 MS (Mass Spectrometry MS)
    • Volatile samples can be run neat; less volatile ones are dissolved in a solvent such as dichloromethane
    B2 中高級

    咖啡是如何去咖啡因的 (How Coffee is Decaffeinated)

    04:06咖啡是如何去咖啡因的 (How Coffee is Decaffeinated)
    • with a solvent, typically dichloromethane and ethyl acetate, for about ten hours. This
    B2 中高級

    有機命名法的基礎知識。有機化學速成班#2 (The Basics of Organic Nomenclature: Crash Course Organic Chemistry #2)

    12:48有機命名法的基礎知識。有機化學速成班#2 (The Basics of Organic Nomenclature: Crash Course Organic Chemistry #2)
    • If we ask our lab partner to pass the dichloromethane and they hand us a bottle labeled methylene chloride… is that the same chemical or not?
    • Now, remember that conundrum from the beginning, when we asked our lab partner for dichloromethane and got a bottle of methylene chloride?
    B1 中級

    化學203.有機光譜學。講座09。化學位移。1H NMR化學位移 (Chem 203. Organic Spectroscopy. Lecture 09. Chemical Shift. 1H NMR Chemical Shifts)

    56:16化學203.有機光譜學。講座09。化學位移。1H NMR化學位移 (Chem 203. Organic Spectroscopy. Lecture 09. Chemical Shift. 1H NMR Chemical Shifts)
    • So you go to dichloromethane and it shouldn't surprise you
    B1 中級

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