查询词典 ether

Dissolve in ethanol, ethyl ether, chloroform and other organic solvents.

1，4-二［2-（4-吡啶）乙烯基］－苯是一种暗红色固体。

Ethyl tert-butyl ether can be produced by ethonol and isobutene catalyzed by acidic ion exchange resins.

乙基叔丁基醚一般由乙醇和异丁烯合成，以阳离子交换树脂为催化剂。

Results: The ultrasound extraction used ethyl ether superior to other methods of 5,identified 36 elements,containing the main esters,carbon-and second-category,at least acetylene category.

结果：乙醚超声萃取的前处理方法明显优于其他5种方法，鉴定出36种成分，主要为酯类，碳烯及烷类次之。

Coking and deactivation of zeolite catalysts in the synthesis of propylene glycol ethyl ether from propylene oxide and ethanol at lower reaction temperature were studied in this thesis.

本文选择反应物与生成物都含有氧原子的自环氧丙烷和乙醇合成丙二醇乙醚作为典型反应，研究较低温度下在沸石催化剂上反应过程中的的积炭失活规律。

Storage tanks developed by the introduction of new special plastic material, containing acetone, ethyl ether and other chloro-organic chemicals Fang operation, there are anti-corrosion and dissolution.

储水箱采用新研制的特种塑料材质，对含有丙酮、乙醚氯钫等有机化学物质的作业，有耐腐蚀而溶解作用。

It is easily soluble in water, acetone and alcohol, slightly soluble in ether, ethyl acetate, chloroform, and pyridine, unsoluble in benzene.

熔点151℃～154℃。易溶于水、丙酮与醇，微溶于醚、乙酸乙酯、氯仿和吡啶，不溶于苯。

And easy to dissolve in the water,at the same times,It does not dissolve in the chloroform, the ethyl alcohol, the ether and other organic solvents.

它易溶于水，不溶于氯仿、乙醇、乙醚等有机溶剂。

Various fractions of tannins with different polarities and relatively narrow molecular weight distribution were obtained by extractions using ether and ethyl acetate sequently.

通过乙醚和乙酸乙酯萃取可得到极性不同的组分。分析表明，各级分的分子量分布范围不同，且相对较窄。

Naphthol ethyl ether was sythesized with the ethanol and β-naphthol as materials and aluminium sulfate as catalyst.

介绍了以乙醇和β-萘酚为原料，在硫酸铝Al2(SO43.18H2O催化下合成β-萘乙醚的方法，讨论了反应时间，催化剂用量以及反应物摩尔比对合成的影响，确定了最佳反应条件。

Methods The cultivated Cs fungus HK-1 and natural Cs were extracted with petroleum ether, ethyl acetate, ethanol, and water.

方法人工虫草菌HK-1与天然虫草分别用石油醚、醋酸乙酯、乙醇和水提取。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。