²é¿´: 740  |  »Ø¸´: 4
±¾Ìû²úÉú 1 ¸ö ·­ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

studenttan

[½»Á÷] Âé·³¸ßÊÖ°ïæ·­ÒëÒ»¾ä»°

»ØÁ÷·¨Í¨³£ÊÇÔÚÓÍԡϼÓÈÈ£¬Èç¹û·´Ó¦Î¶ȹý¸ß£¬Ê±¼ä¹ý³¤£¬ÈÝÒ×ׯ𣬺ܲ»°²È«¡£»¹ÓÐËüµÄÆøÃÜÐÔ²»ºÃ£¬ºÜÈÝÒ×¶Ô¿ÕÆø²úÉúÎÛȾ¡£

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hekai16

ľ³æ (ÕýʽдÊÖ)

ÐÂÊÖÉÏ·£¬»¶Ó­ÅúÆÀÖ¸½Ì£¡
3Â¥2010-07-31 12:09:48
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 5 ¸ö»Ø´ð

hekai16

ľ³æ (ÕýʽдÊÖ)

studenttan(½ð±Ò+8): 2010-07-31 14:20:22
The method of recirculation usually heating up in oil  bath£¬however£¬if the reaction temperature is too high or  the reaction time is too long, it catch fire very easily,and this is very degerous.what's more ,the gas tightness of this methed is unsatisfactory, and is prone to contaminate  air.
2Â¥2010-07-31 12:08:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

charleygan

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

chlgan


studenttan(½ð±Ò+10, ·­ÒëEPI+1): 2010-07-31 14:19:59
The method of reflux is usually heated up in oil bath. However, it is very dangerous if the reaction temperature is too high, or the reaction time is too long, and it could catch fire very easily. Furthermore, it is very easy to pollute the air because of the gas leaking in the reactor.
4Â¥2010-07-31 12:41:44
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ˮƮÁã

½ð³æ (ÖøÃûдÊÖ)

½ðÁê¼Ò×å֮DZˮÈËÊ¿

studenttan(½ð±Ò+2): 2010-08-01 09:30:59
The method of refluxing  often works in oil bath. if the temperature is too high or the reaction time is too long, it is very easy to catch fire. Moreover, it is prone to pollute enviroment due to the poor air impermeability¡£

[ Last edited by ˮƮÁã on 2010-7-31 at 14:35 ]
»¨×ÔÆ®ÁãË®×ÔÁ÷£¬Ò»ÖÖÏà˼£¬Á½´¦Ïг´ËÇéÎ޼ƿÉÏû³ý£¬²ÅÏÂüͷ£¬È´ÉÏÐÄÍ·
5Â¥2010-07-31 14:33:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 328Çóµ÷¼Á£¬Ó¢ÓïÁù¼¶551£¬ÓпÆÑо­Àú +6 ÉúÎ﹤³Ìµ÷¼Á 2026-03-17 10/500 2026-03-22 20:22 by edmund7
[¿¼ÑÐ] 291 Çóµ÷¼Á +3 »¯¹¤2026½ì±ÏÒµÉ 2026-03-21 3/150 2026-03-22 14:26 by ColorlessPI
[¿¼ÑÐ] ²ÄÁÏÇóµ÷¼Á +5 @taotao 2026-03-21 5/250 2026-03-21 20:55 by lbsjt
[¿¼ÑÐ] 297Çóµ÷¼Á +3 ϲ»¶»¹ÊDz»¸ÊÐÄ 2026-03-20 3/150 2026-03-21 18:33 by ѧԱ8dgXkO
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖØÇì´óѧ085700×ÊÔ´Óë»·¾³×Ü·Ö308Çóµ÷¼Á +7 īīĮ 2026-03-20 7/350 2026-03-21 16:36 by barlinike
[¿¼ÑÐ] 279Çóµ÷¼Á +5 ºìÒÂÒþ¹Ù 2026-03-21 5/250 2026-03-21 14:59 by lature00
[¿¼ÑÐ] 265Çóµ÷¼Á +12 ÁºÁºÐ£Ð£ 2026-03-19 14/700 2026-03-21 13:38 by lature00
[¿¼ÑÐ] 279·ÖÇóµ÷¼Á Ò»Ö¾Ô¸211 +14 chaojifeixia 2026-03-19 15/750 2026-03-21 13:24 by zhukairuo
[¿¼ÑÐ] »úеר˶299Çóµ÷¼ÁÖÁ²ÄÁÏ +3 kkcoco25 2026-03-16 4/200 2026-03-21 03:52 by JourneyLucky
[¿¼ÑÐ] ¶þ±¾¿ç¿¼Ö£´ó²ÄÁÏ306Ó¢Ò»Êý¶þ +3 z1z2z3879 2026-03-17 3/150 2026-03-21 02:29 by JourneyLucky
[¿¼ÑÐ] Çóµ÷¼Á +3 Ma_xt 2026-03-17 3/150 2026-03-21 02:05 by JourneyLucky
[¿¼ÑÐ] Çóµ÷¼ÁÒ»Ö¾Ô¸ÄϾ©º½¿Õº½Ìì´óѧ289·Ö +3 @taotao 2026-03-19 3/150 2026-03-20 21:34 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏѧÇóµ÷¼Á +4 Stella_Yao 2026-03-20 4/200 2026-03-20 20:28 by ms629
[¿¼ÑÐ] Çóµ÷¼Á +3 °µÓ¿afhb 2026-03-16 3/150 2026-03-20 00:28 by ºÓÄÏ´óѧУÓÑ
[¿¼ÑÐ] 286Çóµ÷¼Á +6 lemonzzn 2026-03-16 10/500 2026-03-19 14:31 by lemonzzn
[¿¼ÑÐ] 328Çóµ÷¼Á£¬Ó¢ÓïÁù¼¶551£¬ÓпÆÑо­Àú +4 ÉúÎ﹤³Ìµ÷¼Á 2026-03-16 12/600 2026-03-19 11:10 by ÉúÎ﹤³Ìµ÷¼Á
[¿¼ÑÐ] ²ÄÁϹ¤³Ìר˶µ÷¼Á +5 204818@lcx 2026-03-17 6/300 2026-03-18 22:55 by 204818@lcx
[¿¼ÑÐ] ¿¼ÑÐÇóµ÷¼Á +3 éÙËÌ. 2026-03-17 4/200 2026-03-17 21:43 by ÓÐÖ»ÀêÅ«
[¿¼ÑÐ] 11408 Ò»Ö¾Ô¸Î÷µç£¬277·ÖÇóµ÷¼Á +3 zhouzhen654 2026-03-16 3/150 2026-03-17 07:03 by laoshidan
[¿¼ÑÐ] 070300»¯Ñ§Ñ§Ë¶Çóµ÷¼Á +6 Ì«Ïë½ø²½ÁË0608 2026-03-16 6/300 2026-03-16 16:13 by kykm678
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û