查询词典 ether

Meanwhile, experiment with the ternary mixture of methanol, butyl methyl ether and 1-chlorobytane showed that the system was not ternary azeotrope and can be separated by combination of extractive and rectification using water as extractive solvent.

针对甲醇、甲基正丁醚和正氯丁烷三元混合物，研究了该物系的性质，得到该物系不是三元共沸物的结论，并用水作萃取剂，通过实验验证了利用萃取和精馏耦合的方法分离该物系的可行性。

Isopropyl ether is an important intermediate for composing organism andindustrial solvent. It is widely used in medicine, baccy, chemical industrialcombination, environment protection and so on.

异丙醚，又称二异丙基醚、异丙基醚，是一种重要的有机原料和工业溶剂，广泛地应用于医药、烟草、化工合成、环保等领域。

To establish a method for determination of drug in human plasma. The plasma samples were subsequently extracted with ether: chloroform after basification.

［目的］建立准确、简便、灵敏的普鲁卡因血药浓度测定方法，为临床进行药代动力学研究提供实验手段。

Bellflower to soil and acetone in petroleum ether 10-Soxhlet extraction in the extraction, extracts of the scale centrifuge tube in a concentrated sulphuric acid purification.

土壤和桔梗以石油醚十丙酮在索氏提取器中提取，提取液在刻度离心试管中以浓硫酸净化。

The photopolymerization process of acrylate monomer initiated by benzoin ether has been studied by two kinds of fluorescence probe.

意[1，2]。荧光探针法的优点是：1。方法原理明确；2。操作快速简单；3。价格低廉，易于在普通的化学实验室内应用，为此越来越受到人们的关注。

In addition, the effect of photoinitiators, barefoot initiationless will make the system turned yellow cured, such as benzoin double ether, so you should avoid the use of such light initiationless, on confecting

另外，光引发剂的影响也很大，有些光引发剂会使体系固化后发黄，如安息香双甲醚，所以应避免使用这类光引发剂配制上光油

The products were recrystallized by petroleum ether. The purity of 1,2 bis chlormethyl benzol was beyond 98%.

考察了邻二-苯在ZnSO4 催化剂存在下反应条件对合成邻苯二甲醛的影响。

Three ways leads to the synthesis of fenclorin, one way discussed here has 3 steps. Stepl :benzonitrile using as raw material goes though dry hydrogen chloride and becomes a-imino phenylmethyl ether after meet carbinol.

解草啶的合成主要有三条路线，本文选取合成路线是以苯甲腈为原料，经三步反应而成：1、苯甲腈在干燥的氯化氢通入，与甲醇形成亚氨基苯甲醚，通入氨气后置换甲氧基得到苯基脒盐酸盐(收率76.18%)。2、苯基脒盐酸盐在碱性条件下与丙二酸二乙酯环合而得嘧啶醇(收率84.39%)。3、嘧啶醇在三氯氧磷中羟基被氯化得到产品解草啶(收率87.29%)。

A new photoinitiator, 4-phenoxy benzophenone, was synthesized and characterized using diphenyl ether and benzoyl chloride as raw material.

以二苯醚与苯甲酰氯为原料，合成了一种新型的激光光敏刺——4-苯氧基二苯甲酮。

Suitable water-immiscible organic solvents include aromatic hydrocarbons, eg toluene, xylene, naphthalene, tetrahydronaphthalene and methyl naphthalene; chlorinated aromatic hydrocarbons, eg chlorobenzene, fluorobenzene, chloronaphthalene and bromonaphthalene; esters, eg butyl acetate, ethyl acetate, methyl benzoate, ethyl benzoate, benzyl benzoate, butyl benzoate, phenylethyl acetate, butyl lactate, benzyl lactate, diethyleneglycol dipropionate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, di(2-ethylhexyl) phthalate; alcohols having six or more carbon atoms, eg hexanol, octanol, benzyl alcohol, phenyl ethanol, phenoxy ethanol, phenoxy propanol and phenoxy butanol; ethers having at least 5 carbon atoms, preferably C 5-14 ethers, eg anisole and phenetol; nitrocellulose, cellulose ether, cellulose acetate; low odour petroleum distillates; turpentine; white spirits; naphtha; isopropylbiphenyl; terpene; vegetable oil; mineral oil; essential oil; and natural oil; and mixtures of any two or more thereof.

适用于水互溶的有机溶剂包括芳香族碳氢化合物，如甲苯，二甲苯，萘，四氢萘和甲基萘；氯代芳香族碳氢化合物，如氯苯，氟，氯萘和萘；酯类，如醋酸丁酯，醋酸乙酯，苯甲酸甲酯，苯甲酸乙酯，苄酯，苯甲酸正丁酯，苯，醋酸丁酯乳酸，乳酸苄，二甘醇二丙酸酯，邻苯二甲酸二甲酯，邻苯二甲酸二乙酯，邻苯二甲酸二丁酯，二（2乙基己基）酯；醇有6个或更多碳原子，如己醇，辛醇，苯甲醇，苯乙醇，苯氧基乙醇，丙醇和苯氧基苯氧丁醇；醚至少有5个碳原子，最好荤5-14醚，如苯甲醚和phenetol；硝化棉，纤维素醚，醋酸纤维素，低气味石油蒸馏；松节油；白酒，石脑油isopropylbiphenyl；萜类，植物油，矿物油，挥发油；和天然油，以及任何两个或两个以上其混合物。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。