The ocean floor is basalt rock, a mixture of silicon and magnesium.
VOA: special.2011.01.04
Aluminum and magnesium are both made by ionic liquid electrolysis, just as I showed you last day.
铝和镁都是,由离子液体电解而成,就像我昨天讲的。
And magnesium oxide has a melting point of 2,800 degrees C.
氧化镁,熔点在2800摄氏度。
So between b e, and b, between n and o, magnesium and aluminum, and then phosphorous and sulfur, what we see here is that we're kind of going down, or quite specifically, we are going down.
比如从铍到硼,从氮到氧,从镁到铝,从磷到硫,我们在这些地方看到有点下降,或者可以明确地说,我们确实在下降。
And magnesium is over a dollar a pound.
而镁是一美元一磅。
And, she loved metallurgy as I do, and she named one of her dogs Maggie, and one of her dogs Molly, magnesium and molybdenum.
她和我一样都喜欢冶金学,她给一条狗取名为麦琪,另一条取名为莫丽,镁和钼。
So, I went to the library and I looked up Advances in Molten Salt Chemistry volume six because there's an article in there about the chemistry and electrochemistry of magnesium production.
所以我去了趟图书馆,查阅了,第六版的《高级熔融态盐化学》,因为那里面有一篇关于生产镁的,化学和电化学的文章。
I showed you last day what happens when they form and we were able to electrolyze and make fantastic metals like magnesium.
昨天我讲过,当离子液体形成我们就可以使其电解,生成出神奇的金属,比如镁。
But there is nothing saying you cannot take magnesium and mix it with oxygen and make magnesium oxide.
同样的道理,如果将镁,与氧一起反应,就会得到氧化镁。
And at the end of the reaction, you have the reactor consumed of titanium tetrachloride magnesium.
在反应的结尾时,反应器里面,消耗了四氯化钛和镁。
Well, if we just take, for example, MgO, and let's try Mg, magnesium chloride just as an example.
我们以MgO为例,让我们试试Mg,MgCl2也是一个例。
And, seawater contains only 3.7% of the total magnesium present 7% in the Earth's crust.
而海水只含有,地表镁总量的,3。
So, clearly magnesium resources are ubiquitous and virtually inexhaustible.
所以显然镁资源是无处不在的,几乎是用之不竭的。
We can go all the way down -- magnesium aluminum, all the way to this noble gas, 3s23p6 argon, which would be n e and then 3 s 2, 3 p 6.
我们可以继续,镁,铝,一直到惰性气体,氩它是Ne然后。
So, if you could make automobiles with a high magnesium content, you would reduce the mass, reduce the energy required, and thereby reduce the environmental impact.
所以,如果你能用含镁量,很高的材料来制造手机,你就能减轻手机的质量,减少制造所需能量,因此减轻了对环境的破坏。
We put the magnesium 2 plus here, and then we put the oxygen here, O 2 minus, and we know that this gives us our R zero, right?
我们把Mg2+放这,然后O2-放这,我们都知道这给我们的是R0,对么?
And, this involves the reaction of titanium tetrachloride with magnesium to form magnesium chloride plus titanium And, this was invented in 1937 by W. J. Kroll.
四氯化钛和镁,反应生成氯化镁和钛,1937年W。J。克劳尔发明了这个方法。
应用推荐