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But, the reaction says I need twice as much mag as tickle if this reaction is going to go to completion.
但是这个反应告诉我们,镁的量应该是四氯化钛的两倍,如果要反应完全的话。
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OK, so now the question is, how do we know the first place that this is a suitable reductant?
好的，现在的问题是，我们如何能知道第一步中,镁是一个合适的还原剂？
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So, if I look at the mole ratios on the reaction over there I'm going to find that I'll be able to consume, at most, 1,029 over two, right?
所以，注意反应的摩尔比,我们会发现，1029摩尔的镁能被消耗，对吧？
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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。
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Two moles of mag consume one mole of tickle, giving us one mole of Ti, and that's 515 moles of tickle consumed.
两摩尔的镁消耗一摩尔的四氯化钛，得到一摩尔钛，也就是说需要消耗掉515摩尔的四氯化钛。
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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。
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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。
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So, if we want to get more magnesium into the marketplace at an affordable price, not by government edict, what do we have to do?
所以如果我们想把更多的镁,投诸市场，并让它保持在一个不太昂贵的价格，而且不靠政府法令，我们应该怎样做？
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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。
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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。
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Magnesium chloride is the raw material for the production of magnesium.
氯化镁是一种由镁得到的,天然材料。
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But, we know for example that magnesium, when it reacts, it reacts with both of its electrons, not just one of its electrons.
但是我们知道，拿镁来说，当它发生反应的时候，并不只是，某一个电子反应，而是两个价电子都发生反应。
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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。
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It contains an million tons of magnesium, 1,000,000 tons, which is more than has ever been produced in one year by all the magnesium plants in the world.
它含有一百万吨镁，一百万吨，那比我们每年世界各地,生产镁的工厂的总产量还要多。
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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。
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I can only make as much titanium as is consumed by the available magnesium.
有多少可以被消耗的镁,就能得到相应的钛。
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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。
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So, aluminum is about 50% denser than magnesium.
所以铝的密度比镁大一倍。
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Annual production of magnesium is about 600,000 tons per year.
每年的镁产量,大约是六十万吨。
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So, this is about a quarter of the density of steel.
所以镁的密度是贴的四分之一。
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Magnesium is a liquid but it's less dense than magnesium chloride.
镁是液体,但是它的密度比氯化镁要小。
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The yield is going to be throttled by magnesium.
产量将为镁的量所控制。
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Magnesium was 60,000 tons.
镁的产量为每年6万吨。
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OK, so let's say some young engineer is on the job the first day and says, OK, let's put in 200 kg of tickle, and let's put in about 25 kg of mag.
比如一些年轻的工程师,刚来上班时会说，投入200kg的四氯化钛，投入25kg的镁。
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