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| 回流法通常是在油浴下加热，如果反应温度过高，时间过长，容易着火，很不安全。还有它的气密性不好，很容易对空气产生污染。 |
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hekai16
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studenttan(金币+8): 2010-07-31 14:20:22
| The method of recirculation usually heating up in oil bath，however，if the reaction temperature is too high or the reaction time is too long, it catch fire very easily,and this is very degerous.what's more ,the gas tightness of this methed is unsatisfactory, and is prone to contaminate air. |
2楼2010-07-31 12:08:15
hekai16
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3楼2010-07-31 12:09:48
charleygan 
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studenttan(金币+10, 翻译EPI+1): 2010-07-31 14:19:59
| The method of reflux is usually heated up in oil bath. However, it is very dangerous if the reaction temperature is too high, or the reaction time is too long, and it could catch fire very easily. Furthermore, it is very easy to pollute the air because of the gas leaking in the reactor. |
4楼2010-07-31 12:41:44
studenttan(金币+2): 2010-08-01 09:30:59
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The method of refluxing often works in oil bath. if the temperature is too high or the reaction time is too long, it is very easy to catch fire. Moreover, it is prone to pollute enviroment due to the poor air impermeability。 [ Last edited by 水飘零 on 2010-7-31 at 14:35 ] |
5楼2010-07-31 14:33:33