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potassium是什么意思

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potassium 是什么意思

音标:[ pə'tæsjəm ]  

中文翻译与英英解释

n.
【化学】钾。
a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
同义词:K, atomic number 19,

Potassium is a chemical element with symbol?K (from Neo-Latin kalium) and atomic number?19. Elemental potassium is a soft silvery-white alkali metal that oxidizes rapidly in air and is very reactive with water, generating sufficient heat to ignite the hydrogen emitted in the reaction and burning with a lilac flame.

例句与用法

1.Alkalosis and potassium depletion may be pronounced .
可能有碱中毒和缺钾。

2.The components of a potassium cycle vary greatly .
钾素循环的各个环节有很大的变化。

3.The usual counter-ions are sodium, potassium and ammonium .
反离子通常是钠,钾和铵。

4.Fuse potassium dichromate (19) in a porcelain crucible .
在瓷坩埚中熔化重铬酸钾(19)。

5.Folic acid metabolism has been shown to require potassium .
已经证明,叶酸代谢也需要钾。

6.They are alumino-silicates of sodium, potassium and calcium .
它们都是钾和钙的铝硅酸盐类。

7.Gunpowder is composed of sulfur, carbon, and potassium nitrate .
火药是由硫、碳和硝酸钾组成。

8.Sodium and potassium are about the same in their chemical properties .
钠和钾的化学性质几乎是相同的。

9.Without potassium the iron and aluminum are much more soluble .
没有钾存在的话,铁和铝的溶解度要大得多。

10.The potassium hydroxide electrolyte is forced into the cells just before use .
在开始使用前把氢氧化钾电介质压入蓄电池。

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