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zdbzdb(½ð±Ò+20, ·­ÒëEPI+1): 2011-04-12 14:42:15
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Example of preparation
1. preparation of oxide of oxo-3 butane. ¨C ÔÚÒ»¸öÔ²µ×ÉÕÆ¿ (which is surmount by a ÉÏÉýÀäÄýÆ÷ ºÍÒ»¸ö½øÆøµÄ¹Ü×Ó)ÀïÃæ£¬ÎÒÃÇ·ÅÈý¸öMgµÄСËéÁ££¬È»ºóÓÃÒ»²ãÃѸ²¸ÇËü¡£
ÔÚÕâ¸öÐü¸¡ÒºÖУ¬ÎÒÃÇÈÃCH3Brͨ¹ý£¬£¨¶øÕâ¸öCH3Br£¬À´Ô´ÓÚÒ»¸öÆ¿×Ó£¬²¢ÇÒÊÂÏÈÓÃCaCl2¸ÉÔ¡£
·´Ó¦·Ç³£¿ìµÄ¿ªÊ¼ÁË£¬ÎÒÃǼÌÐøÒ»¸öÆøÅݽÓÒ»¸öÆøÅݵļÓÈëCH3Br£¬Ö±µ½È«²¿µÄMgÏûʧ¡£ÎÒÃÇÄÃ×ß¹Ü×Ó£¬È¡¶ø´úÖ®µÄÎÒÃÇ·ÅÒ»¸öµÎҺ©¶·¡£
ÎÒÃÇÔÚÕâ¸öµÎҺ©¶·ÀïÃæ·ÅÒ»·Ö×Óthe oxide of b-cyanethyle, °ÑËüÒ»µÎÒ»µÎµÄ¼ÓÈëµ½º¬Ã¾µÄ·´Ó¦ÎïÖС£µ±ËùÓеĶ«Î÷Ìí¼ÓÍê±Ïºó£¬ÎÒÃǽ«Ëü»ØÁ÷¼ÓÈÈһСʱ£¬È»ºóÈÃËüÀäÈ´¡£ÎÒÃǽ«ËùÓеĶ«Î÷Ò»µãÒ»µãµÄµ¹ÔÚÓÃÑÎËáËữÁ˵ÄËé±ùÉÏ¡£ÎÒÃǽ«Á½²ã½øÐÐÇãÎö£¨£¿»ò·ÖÒº£©£¬²¢ÓÃÃѸÉÔïË®ÈÜÒº£¬in the help of Ò»¸öÁ¬ÐøÝÍÈ¡µÄÒÇÆ÷×°Öá£È»ºó£¬ÎÒÃǰÑËùÓк¬ÃѵÄÈÜÒºÊÕ¼¯ÔÚÒ»Æð£¬ÓÃÉÙÁ¿µÄË®½«ËüÏ´Ò»´Î¡£ÎÒÃÇÓÃÎÞË®ÁòËáÄÆ¸ÉÔﺬÃѵÄÈÜÒº£¬È»ºó¹ýÂË£¬ÔÚwater bathÀïÈ¥³ýÃÑ¡£Ê£ÏµÄÓÍÓüõѹÕôÁó·¨ÕôÁ󣬼¸ºõÈ«²¿µÄÓÍÔÚ123-125¡ãunder 15mm/Hg»áÈ¥³ý¡£
2. »¹Ô­of oxide of oxo-3 butane. ¨C ÔÚÒ»¸ö¶«¶«ÀïÃæ£¬ÓÃ500ml¾Æ¾«Èܽâ100gÇ°ÃæµÃµ½µÄ²úÆ·¡­¡­
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