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  1. ...79 moles) of commercial sodium amideand 110 ml of light mineral oil. The flask was heated, via an external... with water and finally condensed in a dry ice cooled trap. Yield was 39.3 g of 1...

    分類:科學 > 化學 2010年06月02日

  2. ...vinegar. 2006-04-02 04:31:47 補充: Citric acid can also be added to ice cream to keep fat globules separate.Citric acid can be added...

    分類:科學 > 化學 2006年04月10日