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nubee
Master Archiver
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Joined: 18 Feb 2005 |
Posts: 213 |
Location: homeless |
18579.78 Points
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benzene purification
Tue Apr 19, 2005 6:50 am |
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Very pure benzene is best prepared from the commercial product by repeatedly shaking it with small quantities of sulphuric acid to remove thiophen, C4 H4 S, which is not easily removed in any other way. The product is fractionated and then partly frozen. The unfrozen liquid retains most of the impurities, and the crystals separating at 5oC. are very pure benzene. |
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TokenJ
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Joined: 20 Jun 2005 |
Posts: 9 |
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274.80 Points
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re: benzene purification
Wed Jul 20, 2005 6:58 pm |
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fraction distalation is you best bet. but i have heard of fraction crystaliseation |
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TokenJ
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Joined: 20 Jun 2005 |
Posts: 9 |
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274.80 Points
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re: benzene purification
Wed Jul 20, 2005 6:59 pm |
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fraction distalation is you best bet. but i have heard of fraction crystaliseation |
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