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| ³ÆÈ¡ A g CuCl2•2H2O¼ÓÈëµ½×°ÓÐ B mLÒÒ¶þ´¼µÄÉÕ±ÖУ¬½Á°è²¢¼ÓÈȵ½ C ¡æ£¬µÃÂÌÉ«µÄÈÜÒºD¡£È»ºó°ÑE gÁòëåÈܽâÔÚF mLÒÒ¶þ´¼ÖеÃÈÜÒºJ £¬°Ñ J Òº¼ÓÈëµ½ D ÒºÖУ¬±ß¼ÓÈȱ߽Á°è£¬ÈÜÒº¿ªÊ¼Óа×É«Ðõ×´³Áµí²úÉú£¬½Ó×űä³ÉÅ£ÄÌ×´ÈÜÒº£¬×îºóµÃ΢»ÆÉ«µÄ»ìºÏÒº |
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charleygan
ÖÁ×ðľ³æ (ÖøÃûдÊÖ)
chlgan
- ·ÒëEPI: 99
- Ó¦Öú: 496 (˶ʿ)
- ¹ó±ö: 0.005
- ½ð±Ò: 13167.2
- É¢½ð: 15
- ºì»¨: 44
- Ìû×Ó: 2396
- ÔÚÏß: 399.5Сʱ
- ³æºÅ: 859768
- ×¢²á: 2009-09-29
- ÐÔ±ð: GG
- רҵ: Ó¦Óø߷Ö×Ó»¯Ñ§ÓëÎïÀí
zhigang985(½ð±Ò+5): 2010-08-01 15:34:22
| A g of Cucl2•2H2O is added to a beaker with B ml of glycol. The mixture is heated to C ¡æ under stirring, and a green solution is obtained. Then E g of thiourea is dissolved in another beaker with F ml of glycol to make the solution J. Solution J is added in solution D under heating and stirring. Firstly, a white flocculent precipitate separates in the solution, then the solution goes to a milky liquid, and the last a yellow solution is obtained. |
3Â¥2010-08-01 14:59:14
nanzi
½ð³æ (ÕýʽдÊÖ)
- ·ÒëEPI: 10
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 597
- Ìû×Ó: 377
- ÔÚÏß: 56.8Сʱ
- ³æºÅ: 558655
- ×¢²á: 2008-05-15
- ÐÔ±ð: GG
- רҵ: ¾¼Ãѧ/ͳ¼ÆÑ§
zhigang985(½ð±Ò+10, ·ÒëEPI+1): 2010-08-01 15:31:13
zhigang985(½ð±Ò+5):лл£¡ 2010-08-01 15:33:04
zhigang985(½ð±Ò+5):лл£¡ 2010-08-01 15:33:04
| We add A g Cucl2•2H2O to a beaker with B ml of ethylene glycol. Then stir the solution up and heat to C ¡æ. The green solution is obtained. Following this, dissolving Eg thiourea in F ml of ethylene glycol makes solution J. Adding solution J to solution D, we heat it, stirring it simultaneously. Then it leads to the separation of white flocculent precipitate in solution, which becomes milky liquid soon. At last, we obtain the yellowish mixture. |
2Â¥2010-08-01 12:01:36














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