酒精的成分是什麼??? - 酒精
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By Isabella
at 2005-06-13T00:00
at 2005-06-13T00:00
Table of Contents
酒精的成分是什麼???
乙醇嗎??? 還有哪些呢???
乙醇嗎??? 還有哪些呢???
Tags:
酒精
All Comments
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By Liam
at 2005-06-14T22:04
at 2005-06-14T22:04
2.[乙醇+水] 只能說是 [酒] 而已! 如同 [香精] 稀釋(加了溶劑或水)之後,只能稱為 [香水] 的道理一樣。
3.乙醇(酒精)是酒的主要成分。
4.市售酒精常見的有 [藥用] 和 [工業用] 兩種,純度通常是 99% 和 95%,會混有一些水或其他雜質。
希望有解答您的疑問!
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By Isabella
at 2005-06-15T06:07
at 2005-06-15T06:07
2005-06-19 17:16:11 補充:
藥用的酒精也是95%啊!!
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By Suhail Hany
at 2005-06-13T18:16
at 2005-06-13T18:16
跟水無關
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By Jessica
at 2005-06-14T15:09
at 2005-06-14T15:09
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By Ophelia
at 2005-06-16T08:46
at 2005-06-16T08:46
乙醇是酒的主要成分,可由各種植物澱粉或糖蜜發酵製成之。
使澱粉發酵所得的乙醇,除含水外,還含有種種雜質。把這種乙醇水溶液蒸餾時,可得95%酒精,即95%酒精和5%水的混合物。因為95%為乙醇與水的共沸組成。這時的乙醇與水稱為共沸混合物(constant-boiling mixture)或共沸物(azeotrope),不能以分餾方式將乙醇與水分離而製得更純的酒精。
參考書目:
什麼是有機化學,王澄霞著,國立教育資料館主編,幼獅文化事業公司印行,民國七十五年三月再版。
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By Harry
at 2005-06-17T10:09
at 2005-06-17T10:09
乙醇+水
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By Franklin
at 2005-06-12T00:00
at 2005-06-12T00:00
請問酒精是極性還是非極性壓~??
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By Daph Bay
at 2005-06-12T00:00
at 2005-06-12T00:00
請問有關酒精濃度的問題~
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By Yuri
at 2005-06-11T00:00
at 2005-06-11T00:00
酒精濃度??
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By Enid
at 2005-06-11T00:00
at 2005-06-11T00:00
酒的酒精濃度是指每毫升還是整瓶呢!?
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By Jessica
at 2005-06-11T00:00
at 2005-06-11T00:00