英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

hydrogenation    音标拼音: [h,ɑɪdr,ɑdʒən'eʃən]

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Hydrogenation - Wikipedia
    Hydrogenation is a chemical reaction between molecular hydrogen (H 2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum The process is commonly employed to reduce or saturate organic compounds
  • Hydrogenation: Definition, Examples, and Applications - Chemistry Learner
    Hydrogenation is an essential chemical reaction for the synthesis of new chemicals The reaction occurs between a hydrogen molecule and an unsaturated compound , like alkene and alkyne, in the presence of a metal catalyst
  • Hydrogenation | Catalytic, Hydrophobic Lipids | Britannica
    hydrogenation, chemical reaction between molecular hydrogen and an element or compound, ordinarily in the presence of a catalyst The reaction may be one in which hydrogen simply adds to a double or triple bond connecting two atoms in the structure of the molecule or one in which the addition of hydrogen results in dissociation (breaking up) of
  • What Is Hydrogenation? Chemistry Definition - ThoughtCo
    Hydrogenation is a chemical reaction that adds hydrogen to a molecule Hydrogenation is not thermodynamically favorable at ordinary temperatures, so a catalyst is needed Usually this catalyst is a metal Examples of hydrogenated products include margarine, mineral turpentine, and aniline
  • What is Hydrogenation? Understanding the Process and Its Industrial . . .
    Hydrogenation is a chemical reaction in which hydrogen (H₂) is added to an unsaturated compound, typically containing double or triple bonds This reaction is facilitated by a catalyst such as nickel, platinum, or palladium under controlled conditions of temperature and pressure
  • Hydrogenation - an overview | ScienceDirect Topics
    Hydrogenation is the chemical treatment of plastic waste with hydrogen in the presence of a suitable catalyst Compared to other methods, hydrogenation forms highly saturated products, without olefins in the oil because of which we can use the fuel without any further treatment
  • Hydrogenation Explained: Definition, Examples, Practice . . . - Pearson
    Master Hydrogenation with free video lessons, step-by-step explanations, practice problems, examples, and FAQs Learn from expert tutors and get exam-ready!
  • Hydrogenation - Encyclopedia. com
    hydrogenation (hīdrôj´ənā´shən, hī´drəjənā´shən), chemical reaction of a substance with molecular hydrogen, usually in the presence of a catalyst A common hydrogenation is the hardening of animal fats or vegetable oils to make them solid at room temperature and improve their stability
  • 9. 7: Hydrogenation - Chemistry LibreTexts
    Hydrogenation Reaction Unsaturated fatty acids may be converted to saturated fatty acids by the relatively simple hydrogenation reaction Recall that the addition of hydrogen to an alkene (unsaturated) results in an alkane (saturated) A simple hydrogenation reaction is: \[\ce{H_2C=CH_2 + H_2 \rightarrow CH_3CH_3} \nonumber \]
  • Hydrogenation | Catalytic Reactions | Flow Chemistry Applications
    What is hydrogenation? Hydrogenation is the chemical reaction between molecular hydrogen, H 2, and another compound or element There is usually a metal catalyst present, such as palladium, nickel or platinum, which serves to ‘activate’ the hydrogen gas, so it is in a chemically accessible state





中文字典-英文字典  2005-2009