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The solution is stirred with activated charcoal,filtered and the filtrate is concentracted to about 50 ml. Upon the addition of diisopropylether, the product is separated as an oil. The latter solidifies while stirring. The solid product is filtered off and dried. ·Òë³ÉÖÐÎÄ£¬¶ÔÕÕһϣ¬ÏëÖªµÀÊÇ·ñ¸úСŮ×ÓµÄÀí½âÒ»Ö¡£ Thanks! [ Last edited by bire on 2009-4-22 at 22:35 ] |
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liubencai
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bire(½ð±Ò+2,VIP+0): 4-23 08:29
bire(½ð±Ò+2,VIP+0): 4-23 08:29
| ÈÜҺͬ»îÐÔ̿һÆð½Á°è£¬¹ýÂ˲¢°ÑÂËҺŨËõµ½Ô¼50ºÁÉý¡£¼ÓÈë¶þÒì±ûÃÑ£¬²úÆ·×÷ΪÓͱ»·ÖÀë¡£½Á°è¹ý³ÌÖкóÕß·¢ÉúÄý¹Ì¡£¹ýÂ˳ö¹ÌÌå²úÆ·²¢¸ÉÔï |

2Â¥2009-04-22 22:36:37
myhaoqq
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bire(½ð±Ò+2,VIP+0): 4-23 08:29
bire(½ð±Ò+2,VIP+0): 4-23 08:29
|
The solution is stirred with activated charcoal,filtered and the filtrate is concentracted to about 50 ml. Upon the addition of diisopropylether, the product is separated as an oil. The latter solidifies while stirring. The solid product is filtered off and dried. »îÐÔÌ¿¼ÓÈëÈÜÒºÖнÁ°è£¬Ö®ºó½øÐйýÂË£¬ÂËҺŨËõÖÁ´óÔ¼50ml£¬È»ºó¼ÓÈëÒì±ûÃÑ£¬·ÖÀë³öµÄ²úÎï³ÊÓÍ×´Î²¢²»¶Ï½Á°èʹÆä¹Ì»¯£¬È»ºó½øÐкæ¸ÉµÃµ½¹ÌÌå²úÎï¡£ |

3Â¥2009-04-22 23:54:30
iamwolfling
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bire(½ð±Ò+1,VIP+0): 4-23 13:45
bire(½ð±Ò+1,VIP+0): 4-23 13:45
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the product is separated as an oil. ·ÖÀë³öÓͲ㣿 |
4Â¥2009-04-23 06:09:38
bire
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5Â¥2009-04-23 08:27:28
myhaoqq
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bire(½ð±Ò+3,VIP+0): 4-23 22:14
bire(½ð±Ò+3,VIP+0): 4-23 22:14
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6Â¥2009-04-23 14:22:46
bire
Ìú¸Ëľ³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
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7Â¥2009-04-23 22:17:45













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