大家在查： Irak KeyWest might have 乌德琴 glorious history teenage boys polyketone 惯偷恍恍惚惚结束时

diethyl

美 [daɪ'eθɪl]英 [daɪ'eθɪl]

n.【化】二乙基的
网络二乙基庚烷；二乙基丁二酸；其它通用名

diethyl

diethyl

英-汉网络释义

diethyl

n.

1.【化】二乙基的

1

2

The purity of final product is 98% with yield up to 96% (in terms of diethyl malonate ).

目标产品纯度 98%，产率高达 98%（以丙二酸二乙酯计）。

3

The synthetic methods, in which thiourea and diethyl malonate were used as the starting materials were described in detail.

介绍了以硫脲与丙二酸二乙酯为原料的合成工艺路线和研究水平。

4

Diethyl maleate was a synthesis from maleic anhydride and ethyl alcohol in the presence of sodium bisulfate monohydrate .

在一水硫酸氢钠存在下，由马来酸酐和乙醇合成了马来酸二乙酯。

5

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。

6

7

In tetrahydrofuran instead of diethyl ether , the amine 8a was formed in a very low yield, if at all.

假如真的能够发生，那么，如果用四氢呋喃来代替乙醚，那么，胺 8a 生成的量就非常低。

8

Diethyl maleate was synthesized from maleic anhydride and ethyl alcohol in the presence of sodium bisulfate monohydrate .

在一水硫酸氢钠存在下，马来酸酐与乙醇反应合成马来酸二乙酯。

9

Taking succinic acid , alcohol as material, cation exchange resin as catalyst the diethyl succinate is synthesized .

论述了以丁二酸、无水乙醇为原料，离子交换树脂，催化合成丁二酸二乙酯的新工艺。

10

Under base condition, diethyl sulfate and salicylic acid occurred substitution reaction, then acidified to obtain o ehtoxybenzoic acid .

由水杨酸和硫酸二乙酯经碱性下取代、酸化制得了邻乙氧基苯甲酸。

11

In this study , ethanol was optimal as solvent, but diethyl ether was not appropriate to extract the rhizospheric soil of parsley.

乙醇为本试验的最佳浸提剂，乙醚不适合作为西芹根际区物的浸提剂。

12

ANIMAL FEEDING STUFFS . DETERMINATION OF DIETHYL ETHER EXTRACT .

饲料 .二乙醚氧化物提取物的测定

14

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。

15

16

Under this background , I begin the research on Diethyl carbonate (DEC ).

在这种背景下，我展开了碳酸二乙酯（DEC ）的研究。

17

5 -Amino -1, 2, 3-taishan can be composed through a series of reactions at diethyl carboxylate, hydrazine hydrate and chloroacetaldehyde.

介绍了以碳酸二甲酯、水合肼和氯乙醛为原料通过系列反应合成 5 -氨基 -1,2,3-噻二唑的方法。

18

Diethyl ether was used as extractor solvent .

乙醚用作萃取溶剂（淋洗剂）。

19

A new technology for preparation of Ethoprophos from O, O Diethyl Dithiophosphoric acid , Propance Bromide and Dimethylamine was introduced .

介绍了以硫磷酸为原料，与溴丙烷、二甲胺反应合成丙线磷的新工艺。

20

filtered and washed with diethyl ether (20 mL ).

过滤和乙醚洗涤（20 毫升）。

24

workplace air - determination of arsine - silver diethyl dithiocarbamate spectrophotometric method

车间空气中砷化氢的二乙氨基二硫代甲酸银分光光度测定方法

25

Research on the Method for Determination of Diethyl Ketone in the air in a Workplace by Gas Chromatography

工作场所空气中二乙基甲酮气相色谱测定方法的研究

26

determination of arsenic content - silver diethyl - dithiocarbamate photometric method

二乙基二硫代氨基甲酸银光度法测定砷量

29

Analysis of Composition in the Mixture of Xanthates and Diethyl Dithiocarbamate by High Performance Liquid Chromatography

黄原酸盐与氨荒酸混合物的高效液相色谱分析

热词推荐

大家在看