| ²é¿´: 643 | »Ø¸´: 11 | |||
| µ±Ç°Ö÷ÌâÒѾ´æµµ¡£ | |||
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | |||
xiuhuaͳæ (СÓÐÃûÆø)
|
[½»Á÷]
¸ßÊÖ°ïæ ¼±£¡¹ØÓÚ1£¬2-¶þÂÈÒÒÍé³ýË®ÎÊÌâ
|
||
ÎÒ×öµÄʵÑéÐèÒªÑϸñµÄÎÞË®Ìõ¼þ£¬Ñ¡ÓÃ1£¬2¶þÂÈÒÒÍé×÷ÈܼÁ£¬ÇëÎÊÈçºÎ½«ÆäÖеÄÉÙÁ¿Ë®·Ö³ýÈ¥£¿![]() |
» ²ÂÄãϲ»¶
323·Ö£¨¼ÆËã»úÊÓ¾õºÍ´óÄ£ÐÍÏîÄ¿£©ÄÜÖ±½ÓÉÏÊÖ
ÒѾÓÐ3È˻ظ´
¸´ÊÔµ÷¼Á
ÒѾÓÐ3È˻ظ´
311·Ö 22408 Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
320·ÖÈ˹¤ÖÇÄܵ÷¼Á
ÒѾÓÐ7È˻ظ´
Ò»Ö¾Ô¸Ö£´ó0705Çóµ÷¼Á
ÒѾÓÐ4È˻ظ´
0703»¯Ñ§
ÒѾÓÐ10È˻ظ´
301Çóµ÷¼Á
ÒѾÓÐ10È˻ظ´
306·Ö²ÄÁÏÓ뻯¹¤Çóµ÷¼Á
ÒѾÓÐ6È˻ظ´
²ÄÁϵ÷¼Á
ÒѾÓÐ11È˻ظ´
324Çóµ÷¼Á
ÒѾÓÐ9È˻ظ´
wangzy1000
ľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 2995.3
- ºì»¨: 2
- Ìû×Ó: 804
- ÔÚÏß: 41Сʱ
- ³æºÅ: 95787
- ×¢²á: 2005-10-07
- רҵ: »·¾³¹¤³Ì
9Â¥2009-06-09 22:05:28
holycow
ľ³æ (СÓÐÃûÆø)
- Ó¦Öú: 1 (Ó×¶ùÔ°)
- ½ð±Ò: 2682.4
- ºì»¨: 1
- Ìû×Ó: 209
- ÔÚÏß: 63.8Сʱ
- ³æºÅ: 370294
- ×¢²á: 2007-05-13
- ÐÔ±ð: GG
- רҵ: ÓлúºÏ³É
2Â¥2009-06-09 10:53:13
527246736
Òø³æ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 281
- É¢½ð: 1
- Ìû×Ó: 246
- ÔÚÏß: 41.2Сʱ
- ³æºÅ: 567266
- ×¢²á: 2008-06-01
- רҵ: ½ðÊôÓлú»¯Ñ§
¡ï
xiuhua(½ð±Ò+1,VIP+0):лл 6-9 15:36
xiuhua(½ð±Ò+1,VIP+0):лл 6-9 15:36
|
Shaken with conc H2SO4 (to remove alcohol added as an oxidation inhibitor), washed with water, then dilute KOH or aqueous Na2C03 and again with water. After an initial drying with CaC12, MgSO4 or by distn, it is refluxed with P2O5, Cas04 or CaH2 and fractionally distd. Carbonyl-containing impurities can be removed as described for chloroform. It is form Purification of Laborarory Chemicais |
3Â¥2009-06-09 11:01:04
yangjianchun
ľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 8699.9
- ºì»¨: 1
- Ìû×Ó: 2820
- ÔÚÏß: 65.6Сʱ
- ³æºÅ: 148795
- ×¢²á: 2005-12-28
- ÐÔ±ð: GG
- רҵ: ¸ß·Ö×Ӻϳɻ¯Ñ§

4Â¥2009-06-09 11:16:48















»Ø¸´´ËÂ¥