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- ethylidene diethyl ether 乙缩醛
- Animal and vegetable fats and oils - Determination of unsaponifiable matter - Method using diethyl ether extraction. 动植物脂肪和油。不可皂化物的测定。二已醚萃取法。
- Vapor-phase synthesis of N,N-diethyl aniline via diethyl ether over Al_2O_3 was studied. 采用乙醚作烷基化试剂,在氧化铝催化剂上对气相法N,N-二乙基苯胺的合成进行了研究。
- No osmyl and no taste.Soluble in Benzene,Acetone,C2H4Cl2,CS2,toluene,party soluble in alcohol,diethyl ether,insoluble in water,gasoline. 溶于丙酮、苯、甲苯、二硫化碳、二氯乙烷,微溶于乙醇和乙醚,不易溶于水和汽油。
- METHODS Silica gel G was used as stationary phase and a mixture of 1,2-dichloroethane and diethyl ether (80:20) was used as mobile phase. 方法使用硅胶G薄层板,以1,2-二氯乙烷-乙醚(80:20)为展开剂,5%25香草醛硫酸溶液为显色剂。
- Soluble in Benzene,Acetone,CCL2,partly soluble in alcohol,diethyl ether,CCL4,insoluble in water,gasoline and alkali with lower concentration. 溶于丙酮、苯、氯仿、二硫化碳,微溶于乙醇、乙醚、四氯化碳,不易溶于水、汽油和稀碱。
- Using NH?4VO?3 as catalyst and diethyl ether as solvent,benzophenone was obtained quantitatively by the oxidation of diphenylmethane(DPM) with nitric acid. 以w(HNO3)=68%25硝酸做氧化剂,NH4VO3做催化剂,在乙醚溶剂中氧化二苯甲烷得到定量的二苯甲酮(BP)。
- Samples were eluted from Extrelut chromatography column with diether and the mixture of hexane: diethyl ether(1:1, v/v) as eluant and detected by GC-ECD, derivatised by HFBI. 主要研究内容如下:1.;采用柱层析方法,用乙醚及正己烷和乙醚(1+1,v/v)的混合液对样品进行提取与净化,经七氟丁酰咪唑衍生,最后通过GC-ECD测定调味品中氯丙醇的含量。
- White powder or granule. The density is 1.24. Soluble in CS2, benzene, chloroform, alcohol, diethyl ether, insoluble in water and lower concentration alkali. Stability storage. 白色粉末或颗粒。比重为1.;24。溶于二硫化碳、苯、氯仿、乙醇、乙醚,不溶水和稀碱。
- BHT is used as ether stablizer in chemical reagent diethyl ether、 industrial ether、 anesthetic ether, has more obvious steady effect than others, and doesn't influence ether's other quality index. 用BHT作为乙醚稳定剂,应用于试剂乙醚、业乙醚、麻醉乙醚等均有比一般乙醚稳定剂更显著的稳定效果,而且基本上不影响乙醚产品的其它质量指标。
- BHT is used as ether stablizer in chemical reagent diethyl ether, industrial ether, anesthetic ether, has more obvious steady effect than others, and doesn't influence ether's other quality index. 用BHT作为乙醚稳定剂,应用于试剂乙醚、工业乙醚、麻醉乙醚等均有比一般乙醚稳定剂更显著的稳定效果,而且基本上不影响乙醚产品的其它质量指标。
- Laboratory Investigations Tail Clamp Responses in Stomatin Knockout Mice Compared with Mobility Assays in Caenorhabditis elegans during Exposure to Diethyl Ether, Halothane, and Isoflurane. 暴露于乙醚,氟烷,异氟烷期间
- The fumigation toxicity of Alpinia officinarum Rhizome anhydrous diethyl ether extract prepared by the Soxhlet extraction on adults, larvae, pupae and eggs of Lasioderma serricorne was investigated. 摘要采用索氏提取法,以乙醚为有机溶剂制备高良姜根茎提取物,研究其对烟草甲成虫、幼虫、蛹、卵的熏蒸作用。
- Properties: Insipidity ;soluble in benzene、acetone、dichlorethane、carbon bisulfide, methylben-zene, chloroform;faintly soluble in alcohol and diethyl ether;insoluble in benzin and water;stability. 性 状:本品无臭、无味、溶于苯、丙酮、二氯乙烷、二硫化碳、甲苯、氯仿、微溶干乙醇和乙醚、不溶于汽油和水、贮藏性稳定。
- BHT is used as ether stablizer in chemical reagent diethyl ether、 industrial ether、 anesthetic ether,has more obvious steady effect than others,and doesn't influence ether's other quality index. 用BHT作为乙醚稳定剂,应用于试剂乙醚、工业乙醚、麻醉乙醚等均有比一般乙醚稳定剂更显著的稳定效果,而且基本上不影响乙醚产品的其它质量指标。
- Crystalline polypyrene microsheets were electrosynthesized in the medium of boron trifluoride diethyl etherate for the first time. 4.;在三氟化硼乙醚介质;电聚合芘首次制备出结晶型的聚芘微米片。
- Soluble in acetone, diethyle ether, ethyl acetate, hot CCL4 and hot alcohol, slightly soluble in gasoline, insoluble in kerosene &H2O. 溶于丙酮、苯、甲苯、乙醚、乙酸乙酯、热四氯化碳、热醇,微溶于汽油,不溶于煤油和水。
- A whiff of ether will put you out in a few seconds. 一剂乙醚几秒钟后就会使你失去知觉。
- Oilseed residues; determination of diethyl ether extract 油渣饼和渣屑的检验。乙醚萃取物测定
- Keywords aniline;diethyl ether;N -ethylation;kinetics; 苯胺;乙醚;N-乙基化反应;动力学;