cations

[美]/'kætaɪən/
[英]/'kætaɪən/
词频: 极高

释义

n. 阳离子;正离子 阳离子或正离子是带有正电荷的离子。

短语搭配

cation exchange

[化]阳离子交换

cation exchange resin

阳离子交换树脂

cation exchange capacity

阳离子交换量;阳离子交换能力

cation exchanger

阳离子交换器,阳离子交换剂

例句

The exchangeable characteristic of cation is the driving force that makes the organic cation intercalate the interlayers.

蛭石层间阳离子的可交换特性是使有机阳离子插入到层间域的驱动力;

The spectra show that the complexation of iodine cation doesnot lead to deformation of the macrocycle polyamine.

光谱分析表明,碘正离子的配位并未引起大环多胺构型的改变。

Cation exchange resin, strong acidic styrene (001x8);Duolite C20,sodium form;

强酸性苯乙烯系阳离子交换树脂(001×8型);

Cation group has the capability of charge neutrality and this would make oily wastewater demulsify and remove oil easily.

润湿反转剂能改变颗粒的润湿性,增强气泡与颗粒的粘附能力;

Acids with different cation were distinguishingly different in activation energy and frequency factor distribution.

不同阳离子的同种羧酸盐,活化能和频率因子分布却相差很大。

Taking the example of the homoaromaticity of cyclooctriene cation and imidazole and oxazole basicity,the essay discusses the application of resonance theory.

文中以环辛三烯正离子的同芳香性和咪唑与恶唑的碱性为例,讨论了共振论的应用。

A method for the determination of trace cations in the tetramethylammonium chloride was developed by ion chromatography(IC) with conductivity detector.

文章采用离子色谱法测定高浓度四甲基氯化铵中钠、钾和钙金属离子。

Binding energy and interaction potential of calcium cation and diazine ring are based on the calculation of all the complexes of optimized structures.

对优化得到的稳定配合物计算了钙离子与二嗪的结合能和相互作用势.

9. The resultant ionized bond can be cleaved by a hemi-heterolysis process, affording a cation and a neutral radical.

生成的离子化键能由半异裂的过程而开裂,提供一个正离子和一个中性的游离基。

Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以乙烯酮和丙酮为原料,用强酸性离子交换树脂代替浓硫酸作为催化剂,直接酯化合成乙酰丙酮的中间体乙酸异丙烯酯。

Structure of pneumatic material c lamping device and pneumatic system have been introduced with ex-pounding appli cation in a notching press.

介绍对气动压料装置的结构及气动系统,以及气动压料装置在冲槽机上的应用。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催化剂,十三碳二元酸与乙醇为原料合成十三碳二元酸二乙酯,考察了影响反应的因素。

C36CH2 cations have antiaromaticity with negative resonance energy, whereas C36CH2 anions have aromaticity with positive resonance energy.

反之,C36CH2阴离子因共振能为正值而具有较高的芳香性和稳定性。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂固定床催化下与乙醇反应生成异菠基乙醚。

When metal-bearing solution moved along deep faults to cavities or frac tures, the metal cations reated with pyrite and organic matter and precipitated as sulfid...

在构造减压带中,铅锌配合物交代地层中的黄铁矿或被有机质还原而沉淀富集。

Of these ions,only 2,6 dinitrophenol,2,4 dinitrophenol and molybdic acid cation show their selectivity coefficents being more than 1 0×10 -2 .

测定了电极对硝酸根等干扰离子的选择性系数,仅2,6二硝基酚、2,4二硝基酚和钼酸根的选择性系数大于10×10-2。

原声例句

The sodium, this became a cation, because it's positive.

钠,这变成了阳离子,因为它是正的。

来源: Khan Academy: Biochemistry

Cations are positively charged and anions are negatively charged.

阳离子带正电, 阴离子带负电。

来源: Crash Course Comprehensive Edition

So cations only react with anions to form new compounds.

所以阳离子只与阴离子反应形成新的化合物。

来源: Crash Course Comprehensive Edition

Silver is also a metal and is also a cation.

银也是一种金属, 也是一种阳离子。

来源: Crash Course Comprehensive Edition

But they're really just positively-charged cations — like calcium, sodium, and potassium — and negatively-charged anions, like phosphate, sulfate, and bicarbonate.

但它们实际上只是带正电荷的阳离子——比如钙、钠和钾——和带负电荷的阴离子,比如磷酸盐、硫酸盐和碳酸氢盐。

来源: Crash Course Anatomy and Physiology

And don't just think that there's one anion and one cation.

不要只是认为只有一种阴离子和一种阳离子。

来源: Crash Course Comprehensive Edition

But how do we know which ions are cations and which are anions?

但是我们怎么知道哪些离子是阳离子哪些是阴离子呢?

来源: Crash Course Comprehensive Edition

Alkali metals want nothing more than to dump off an electron and form a positive ion, or cation.

碱金属只想释放电子并形成正离子或阳离子。

来源: Crash Course Comprehensive Edition

Now, when we name ionic compounds, we just say the cation first, and the anion second.

现在,当我们命名离子化合物时, 我们只是先说阳离子, 然后再说阴离子。

来源: Crash Course Comprehensive Edition

But the names of these ions change somewhat depending on whether they are cations or anions.

但是这些离子的名称会根据它们是阳离子还是阴离子而有所不同。

来源: Crash Course Comprehensive Edition

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