四氢呋喃如何干燥? The procedure in the article describes adding 5 grams of sodium, and 30 grams of benzophenone to 3 liters of tetrahydrofuran. 1 The mixture is then refluxed under inert gas until the blue color of the benzophenone ketyl forms. 很管用的,我经常这么除水 查看更多