²é¿´: 1816  |  »Ø¸´: 8

kfwangguan

ľ³æ (СÓÐÃûÆø)

[½»Á÷] ¡¾Çë½Ì¡¿Çë½ÌÒ»ÏÂÕâ¸öÉú³¤¾§ÌåµÄÆæ¹Ö·½·¨µ½µ×ÊÇʲô£¿Ð»Ð» ÒÑÓÐ2È˲ÎÓë

ÎÒÃǶ¼ÖªµÀÒ»°ã¾§ÌåµÄÉú³¤·½·¨ÓÐÖîÈç solvent evaporation£¬solution diffusion£¬hydrothermal conditions µÈµÈ£¬µ«ÊÇÎÒ¿´µÄÕâ¸öÎÄÏ×ÉÏÃæËµµÄºÏ³É·½·¨ÀïÓÐrotorary evaporator »¹ÓÐ centrifugation ʲôµÄ£¬ÀïÃæ¼ÓÈëÓлúÈܼÁ·ÖÀë³ÁµíµÄ²½ÖèÓÖÏñÊÇ decantation . ×îºó³¤³ö¾§ÌåÄÇÒ»²½ËµµÄÒ²²»Ïêϸ ²»ÖªµÀʲô³¤³öÀ´µÄ¡£Èç¹û¹éÄÉËûµÄºÏ³É·½·¨ÊDz»ÊÇÓ¦¸Ã½Ð×ösolvent evaporation ÄØ£¿Èç¹û²»ÊÇÄÇÓ¦¸Ã½Ð×öʲô£¿

лл´ó¼Ò °ïæ·ÖÎöÒ»ÏÂ×îºó³¤³ö¾§ÌåÓõÄÊÇʲô·½·¨£¿





A mixture of a and b in 9 mL of water was refluxed for 45 min, after which the

volume of the solution was reduced to half on a rotorary evaporator. Addition of 5

mL of ethanol to the solution led to the formation of an orange precipitate of c,

which was separated by filtration. Addition of a few drops of ethanol to the

filtrate led to the formation of a fine yellow-orange powder, which was identified

as a mixture of compounds and was separated after centrifugation. In the resulting

solution, pale-yellow needle crystals of d appeared in a few hours.

[ Last edited by kfwangguan on 2010-8-24 at 13:14 ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

jjxiang

¾èÖú¹ó±ö (ÖøÃûдÊÖ)

¡ï
eeqeeq0002(½ð±Ò+1):лл¡¡²ÎÓë 2010-08-24 15:48:22
kfwangguan(½ð±Ò+1):лл 2010-08-24 18:39:42
Ç°ÃæËµµÄ¶¼Êǵõ½¹ÌÌ壬×îºóÒ»²½¾ÍÊdz¤³öµÄ¾§Ì壡¿ÉÄÜÊÇÕâÖÖ¾§Ìå·Ç³£ºÃ³¤£¬¼¸Ð¡Ê±¾Í³¤³öÀ´ÁË£¡~~~~~~
ÏÂÒ»²½£¬×ö×Ô¼º£¡£¡
2Â¥2010-08-24 12:17:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xiling1661

¡ï
eeqeeq0002(½ð±Ò+1):лл¡¡²ÎÓë 2010-08-24 15:48:31
kfwangguan(½ð±Ò+1):лл 2010-08-24 18:39:51
rotorary evaporator Ó¦¸ÃÊÇÐýתÕô·¢ÒÇ£¬Ö÷ÒªÓÃÓÚÔÚ¼õѹÌõ¼þÏÂÁ¬ÐøÕôÁó´óÁ¿Ò×»Ó·¢ÐÔÈܼÁ¡£¶ÔÝÍȡҺµÄŨËõºÍÉ«Æ×·ÖÀëʱµÄ½ÓÊÕÒºµÄÕôÁ󣬿ÉÒÔ·ÖÀëºÍ´¿»¯·´Ó¦²úÎï¡£
centrifugationÓ¦¸ÃÊÇÓÃÀëÐÄ»ú·ÖÀë°É£¬ÔÚ×öË®ÈÜҺʱÓõ½¹ý£¬µ±Ê±ÊÇΪÁË·ÖÀëÈÜÒºÖеijÁµí£¬µ÷½ÚÈÜÖʵÄPHÖµ£¬¹Û²ìÉú³¤±ä»¯£¬ÕâÆªÎÄÏ×Àï¿ÉÄÜÖ»ÊÇ·ÖÀë¡£
3Â¥2010-08-24 12:43:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

kfwangguan

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by jjxiang at 2010-08-24 12:17:35:
Ç°ÃæËµµÄ¶¼Êǵõ½¹ÌÌ壬×îºóÒ»²½¾ÍÊdz¤³öµÄ¾§Ì壡¿ÉÄÜÊÇÕâÖÖ¾§Ìå·Ç³£ºÃ³¤£¬¼¸Ð¡Ê±¾Í³¤³öÀ´ÁË£¡~~~~~~

µ«Êdz¤³ö¾§ÌåµÄ·½·¨Ó¦¸ÃÊÇʲôÄù£¿
4Â¥2010-08-24 13:13:39
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wzyou2008

ľ³æ (ÕýʽдÊÖ)

Сľ³æÖ®Ð¡Ò©³æ

¡ï
eeqeeq0002(½ð±Ò+1):лл¡¡²ÎÓë 2010-08-24 15:48:49
kfwangguan(½ð±Ò+4):лл 2010-08-24 18:40:19
²»ÖªÄãÊÇÓ¢ÎÄѧµÄ²»ºÃ£¬»¹ÊÇÓлúѧµÄ²»ºÃ°¡£¬Á½Õß¶¼Ñ§ºÃÁË£¬»¹ÓÐʲôºÃÆæ¹ÖµÄ£¿£¡ºÃÆæ¹Öѽ£¡
Õâ¾ÍÊÇÒ»¸ö¼òµ¥µÄÖØ½á¾§¶øÒÑ¡£Ç°ÃæÊÇ·´Ó¦µÃµ½ÅäºÏÎȻºóÓÃÒÒ´¼Îö¾§£¬×îºóÓÃÒÒ´¼Öؽᾧ£¬ÊôÓÚÄã¹éÀàµÄsolvent evaporation
ËæÓö¶ø°²£¡
5Â¥2010-08-24 13:41:41
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

°¢¶ûÈøË¹

¡ï
eeqeeq0002(½ð±Ò+1):лл¡¡²ÎÓë 2010-08-24 15:49:07
kfwangguan(½ð±Ò+1):лл 2010-08-24 18:40:00
À©É¢·¨ºÍÈȺϷ¨ÈÜÒºÊǾ²Ö÷´Ó¦µÄ£¬ÕâÖÖÐýתºÍÀëÐIJ»¹ýÊǶ¯Ì¬·´Ó¦£¬µÈÓÚÊǽÁ°èºÍ·´Ó¦·ÅÔÚÒ»Æð¡£µ«Ô­Àí²î²»¶àµÄ°É¡£
6Â¥2010-08-24 14:12:24
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

daun

½ð³æ (СÓÐÃûÆø)

kfwangguan(½ð±Ò+1):лл 2010-08-24 18:40:05
wsht212:лл½»Á÷£¬Ï£Íû³£À´£¡ 2010-08-25 20:04:13
¾ÍÊÇÒ»²½Öؽᾧ
7Â¥2010-08-24 15:57:08
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ZJboy

ľ³æ (ÖøÃûдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
wsht212:лл½»Á÷£¬Ï£Íû³£À´£¡ 2010-08-25 20:04:23
ÒýÓûØÌû:
Originally posted by daun at 2010-08-24 15:57:08:
¾ÍÊÇÒ»²½Öؽᾧ

ÕâÖÖ·½·¨Ó¦¸ÃÊǵõ½·Û¾§°É¡£
8Â¥2010-08-24 22:23:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

cobaltoxid

Í­³æ (³õÈëÎÄ̳)

wsht212:лл½»Á÷£¬Ï£Íû³£À´£¡ 2010-08-25 20:04:35
just the most traditional way to evapourize solvent and add
a poor solvent
9Â¥2010-08-25 00:53:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ kfwangguan µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] »¯Ñ§¹¤³Ì321·ÖÇóµ÷¼Á +9 ´óÃ×·¹£¡ 2026-03-15 12/600 2026-03-16 21:59 by ´óÃ×·¹£¡
[¿¼ÑÐ] ¶«ÄÏ´óѧ364Çóµ÷¼Á +5 JasonYuiui 2026-03-15 5/250 2026-03-16 21:28 by ľ¹Ï¸à
[¿¼ÑÐ] ²ÄÁÏר˶306Ó¢Ò»Êý¶þ +4 z1z2z3879 2026-03-16 6/300 2026-03-16 19:38 by z1z2z3879
[¿¼ÑÐ] 326Çóµ÷¼Á +4 ŵ±´¶û»¯Ñ§½±êéê 2026-03-15 7/350 2026-03-16 17:11 by ŵ±´¶û»¯Ñ§½±êéê
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤Çóµ÷¼Á +3 Ϊѧ666 2026-03-16 3/150 2026-03-16 15:09 by ¼ÓºÅ+
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖÐʦ·¶071000£¬325Çóµ÷¼Á +6 RuitingC 2026-03-12 6/300 2026-03-16 14:50 by ¿Éµ­²»¿ÉÍü
[¿¼ÑÐ] 308Çóµ÷¼Á +3 ÊÇLupa°¡ 2026-03-16 3/150 2026-03-16 10:07 by Çóµ÷¼Ázz
[¿¼²©] ¶«»ªÀí¹¤´óѧ»¯²Äרҵ26½ì˶ʿ²©Ê¿ÉêÇë +6 zlingli 2026-03-13 6/300 2026-03-15 20:00 by ryzcf
[¿¼ÑÐ] ²ÄÁϹ¤³Ì327Çóµ÷¼Á +3 xiaohe12w 2026-03-11 3/150 2026-03-14 20:20 by ms629
[¿¼ÑÐ] 297Ò»Ö¾Ô¸ÉϽ»085600Çóµ÷¼Á +5 Ö¸¼â°ËǧÀï 2026-03-14 5/250 2026-03-14 17:26 by a²»Ò×
[¿¼ÑÐ] 290Çóµ÷¼Á +4 @½«¾Í½«¾Í¿´ 2026-03-10 8/400 2026-03-14 14:23 by ǧǧÔËÆø
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤£¨0856£©304ÇóBÇøµ÷¼Á +7 Çñgl 2026-03-10 11/550 2026-03-14 12:18 by Çñgl
[¿¼ÑÐ] 321Çóµ÷¼Á +3 CUcat 2026-03-10 3/150 2026-03-14 00:25 by JourneyLucky
[¿¼ÑÐ] 318Çóµ÷¼Á +3 Àîйâ 2026-03-10 3/150 2026-03-14 00:21 by JourneyLucky
[¿¼ÑÐ] 341Çóµ÷¼Á +4 ·¬ÇÑÍ·--- 2026-03-10 4/200 2026-03-13 23:12 by JourneyLucky
[¿¼ÑÐ] 337Ò»Ö¾Ô¸»ªÄÏÀí¹¤0805²ÄÁÏÇóµ÷¼Á +7 mysdl 2026-03-11 9/450 2026-03-13 22:43 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤304ÇóBÇøµ÷¼Á +5 Çñgl 2026-03-11 6/300 2026-03-13 22:37 by JourneyLucky
[¿¼ÑÐ] ²ÄÁϹ¤³Ìµ÷¼Á +4 ßäßä¿Õ¿Õ 2026-03-11 4/200 2026-03-13 19:57 by JourneyLucky
[¿¼ÑÐ] 268Çóµ÷¼Á +4 ºÃÔËÁ¬Ã಻¾ø 2026-03-12 4/200 2026-03-13 10:45 by hyswxzs
[¿¼²©] ¶Á²©ÉêÇë +5 ¸Ðdd 2026-03-10 7/350 2026-03-11 17:02 by QGZDSYS
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û