Abstract : a new method on extraction of phenanthrene from crude anthraceneis given , which includes azeotropic dissolution with ethylene glycol , extraction of carbon tetrachloride , treatment of sulfuric acid and ethyl alcohol recrystallization , in the end , the best process is obtained 文摘:研究了从粗蒽中提取菲的方法,即用乙二醇对原料进行共沸,以四氯化碳为溶剂并用硫酸处理,最后用无水乙醇重结晶,制定出最佳的工艺路线
The antimicrobial secretion could be divided into three sections , every section had antimicrobial activity . the first could be extracted by petroleum ether , the second could be extracted by ethyl alcohol , the third could dissove in water and could be separated by sephadex g - 50 , g200 gel filtration chromatography and carbornmethyl cellulose - 1 anion - exchange chromatography and detected by a256 , . the antimicrobial secretion had wide spectrum and had strong inhitory activity against germs and fungi , they could inhibit sixteen kinds of plant pathogenic germs , eight kinds of animal germs and eight kinds of plant pathogenic fungi 粗提物经石油醚萃取可得第一个活性部分,剩余部分经无水乙醇萃取可得第二个活性部分,剩余物质再经凝胶sephadexg - 50后有两个峰,第二峰有活性,再经凝胶sephadexg - 200后有三峰,第二峰有活性,将其经过阳离子交换柱cm - 1后有两峰,此两峰均有抑菌活性。
Cooking alcoholic beverages : alcoholic beverages utilizing liquor made from cereals or other starch - containingplants added with ethyl alcohol after saccharification as a base , or utilizing brewed alcoholic beverages , distilled spirits or ethyl alcohol directly as a base ; with a salt content of more than 0 . 5 % of the total volume , and with or without other flavors 五)料理酒?以?类或其他含淀粉之植物性原料经糖化后加入酒精制得产品为基酒;或直接以酿造酒、蒸馏酒、酒精为基酒?加入百分之零点五以上之盐,添加或不添加其他调味料,调制而成供烹调用之酒。
The radish red by the mustard family plant party loyalty radish after squeezing , filters , withdraws , the vacuum concentration , spray drying but , assumes the scarlet red indefinite powder , the easy absorption of moisture , after the absorption of moisture to form massive , but does not affect the use effect , the taste micro acid , is easy to dissolve in the water , does not dissolve in the absolute ethyl alcohol , serves as the food coloring , is suitable in the acidic drink , the luster bright , is transparent , general amount used 0 . 02gkg 萝卜红由十字花科植物红心萝卜经压榨、过滤、提取、真空浓缩、喷雾干燥而得,呈深红色无定型粉末,易吸潮,吸潮后结成块状,但不影响使用效果,味微酸,易溶于水,不溶于无水乙醇,用作食用色素,适用于酸性饮料,色泽鲜艳、透明、一般用量0
Monodisperse ( coefficient of variation 5 % ) polystyrene microspheres in the size range of 1 . 0 ~ 10 m are prepared by dispersion polymerization in ethyl alcohol reaction media using polyvinylpyrrolidone ( pvp ) as a steric stabilizer and 2 , 2 ' - azobisizobutyronitrile ( aibn ) as an initiator in suitable condition 摘要以聚乙烯吡咯烷酮为分散剂、无水乙醇为反应介质、偶氮二异丁腈为引发剂,采用分散聚合的方法,通过优化反应条件,成功制备出了粒径范围为1 ~ 10 m不同粒径级别的单分散(分散系数5 % )聚苯乙烯微球。
nonflavored alcohol of 95 percent or 190 proof used for blending with straight whiskies and in making gin and liqueurs 同义词:neutral spirits,
the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline 同义词:ethanol, fermentation alcohol, grain alcohol,