7.Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.
向次溴酸钠溶液中滴加适量的丙酮,在四丁基溴化铵催化下,高产率得到四溴化碳。
8.Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.
采用无水乙醇、乙醚、丙酮及水溶剂,对四川汉源花精油提取研究。
9.Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.
10.The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).
模拟表明，有三个乙酸分子和一个质子（以氧鎓的形式纯在）参与反应。
11.However, other solvents, such as acetone and trichlorotrifluoroethane, were not and the procedure was adequate for recovering a known inoculum of spores.
不过其他溶剂（如丙酮和三氯三氟乙烷）就不会，操适用于回收孢子接种物。
12.In this paper we studied the simple history,principle,process and selective method of carrier and medium of production of acetone and butanol with fermentive method of clostridium aceto-butylicum.
本文研究丙丁菌发酵法生产丙酮和丁醇的简史、原理、过程,以及载体和培养基的选择方法。
13.(Sweet legumin of 2) heparin and benzyl acetone: Can improve Gao Ning position of blood, and prevent kidney spherule sclerosis and new moon bodily form to become.
( 2)肝素与苄丙酮香豆素：可以改善血液的高凝状态，而防止肾小球硬化及新月体形成。
14.The release patterns of norgestrel in NRID in vivo were simulated after the norgestrel in NRID was dissolved by acetone and the rest of norgestre was determined by Ultraviolet Ray Spectrometer.
新型高效的氧化剂二甲二氧环烷
催化剂合成
的新鲜试样必须在工业酒精及纯
