但过渡金属在不同的情况下释放不同数量的电子,因此就形成乐携带不同数目正电的离子。
Usually, iron loses two or three electrons.
通常情况下,铁原子丧失2-3个电子。
But in ferrates, which are compounds of iron and oxygen with non-transition metals likesodium and calcium, it loses six.
但是在高铁酸盐中是铁原子、氧原子以及非过渡金属如纳原子、钙原子的化合物,它失去了6个电子。
That makes ferrates extremely reactive, and it is this reactivity which Mr Daly hopes toexploit.
这使得高铁酸盐极其具有活性,而这也是Daly先生希望挖掘出的活性。
First, ferrates are strong oxidising agents.
首先,高铁酸盐是强氧化剂。
That means they destroy bacteria and viruses, and break up organic molecules withalacrity.
也就是说,它们能够破坏细菌和病毒,并能迅速分解有机分子。
Second, they are coagulants and flocculating agents.
其次,它们也是凝结剂和絮凝剂,
They attract other chemicals in the water, including dissolved metals, and precipitate themfor easy removal.
吸引水中其他的化学物质并生成沉淀就可以毫不费力的去除掉。
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