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xuyh_326

ľ³æ (ÖøÃûдÊÖ)


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A 5 liter (1) glass flask equipped with a stirrer, thermocouples in a thermowell extending into the reaction zone and connected to a recorder and a temperature controller, an encompassing heating mantle, a vacuum jacketed 10-tray Oldershaw column having a magnetically controlled fraction splitter and a water-jacketed product receiver, and a vacuum line having a pressure regulator and a manometer was charged with 3700 ml (3804 g) of N-methylpyrrolidone (NMP) and 435 g (7.5 moles) of potassium fluoride.
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

1986

Ìú¸Ëľ³æ (ÖªÃû×÷¼Ò)

ҩͯ

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

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xuyh_326(½ð±Ò+10, ·­ÒëEPI+1): ·Ç³£¸Ðл£¡ÒòΪûÓÐÓùýÏà¹ØÓлúºÏ³É·´Ó¦×°Öã¬ÏÖÔÚÒª´îÕâÑùÒ»¸ö×°Öã¬ËùÒÔÏ£ÍûÄܸü¼ÓÏêϸµÄ·­Ò룬ÓÈÆäÊÇ¡°a vacuum jacketed 10-tray Oldershaw column having a magnetically controlled fraction splitter¡±²»ÖªÊÇʲô¶«Î÷¡£ 2011-06-03 14:57:44
sltmac(½ð±Ò+15): »¶Ó­³£À´±¾°æ~~ 2011-06-05 09:05:41
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2Â¥2011-06-03 14:29:32
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

1986

Ìú¸Ëľ³æ (ÖªÃû×÷¼Ò)

ҩͯ

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

xuyh_326(½ð±Ò+5): ÓÐûÓÐÏà¹Ø×°ÖõÄͼƬ»òÕßʾÒâͼ£¬ÏÈллÁË£¡ 2011-06-03 18:18:03
oldshaw column ÊÇÒ»ÖÖ¾«ÁóËþ£¬¼òµ¥µÄ˵ÄǾ仰˵µÄ¾ÍÊÇÒ»ÖÖ¾«ÁóËþ£¬ÍøÉÏÓеģ¬Äã¿ÉÒÔËÑѰÏ¡£
3Â¥2011-06-03 15:34:20
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