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2Â¥2013-04-15 09:25:46
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3Â¥2013-04-15 10:03:36
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2Â¥: Originally posted by ÄÏ·çÌ«¹ÅÐÄ at 2013-04-15 09:25:46
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After careful addition of  50mL  of  conc.H2SO4, the  reaction mixture was refluxed for  16h to give a clear solution.The warm solution was poured onto ice.ÎÒ²»ÖªµÀËüÕâ¾ä»°µÄÒâ˼ÊǰÑÈÜÒºµ¹Èë±ùÖУ¬»¹Êǽ«ÈÜҺװÔÚÉÕ±­ÖУ¬È»ºó½«ÉÕ±­½þûÔÚ±ùÖУ¿
4Â¥2013-04-15 11:28:19
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ÒýÓûØÌû:
3Â¥: Originally posted by jwucn at 2013-04-15 10:03:36
ûÓÐÉÏÏÂÎÄ,¾ÍÕÕ×ÖÃæÀí½â,²»»á¿´²»¶®Ó¢ÎİÉ.

After careful addition of  50mL  of  conc.H2SO4, the  reaction mixture was refluxed for  16h to give a clear solution.The warm solution was poured onto ice.ÎÒ²»ÖªµÀËüÕâ¾ä»°µÄÒâ˼ÊǰÑÈÜÒºµ¹Èë±ùÖУ¬»¹Êǽ«ÈÜҺװÔÚÉÕ±­ÖУ¬È»ºó½«ÉÕ±­½þûÔÚ±ùÖУ¿
5Â¥2013-04-15 11:29:01
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onto ice,µ¹ÔÚ±ùÉÏ.
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