Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 576  |  »Ø¸´: 2
±¾Ìû²úÉú 1 ¸ö ·­ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

zhigang985

Òø³æ (СÓÐÃûÆø)

[½»Á÷] Çë½Ì¸ßÊÖ·­ÒëÒ»¶Î»°£¬²»Ê¤¸Ðл£¡

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

» ²ÂÄãϲ»¶

°®ÎÒËù°®£¡
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

charleygan

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

chlgan


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
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 3 ¸ö»Ø´ð

nanzi

½ð³æ (ÕýʽдÊÖ)

zhigang985(½ð±Ò+10, ·­ÒëEPI+1): 2010-08-01 15:31:13
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
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ±¾¿Æ211£¬±¨¿¼085601-310·Ö +15 ararak 2026-04-13 15/750 2026-04-14 13:57 by ÈýÆßÆßÏëÉϰ¶
[¿¼ÑÐ] ҩѧÇóµ÷¼Á +5 RussHu 2026-04-12 6/300 2026-04-14 13:12 by µÚÒ»ÌìºÃ
[¿¼ÑÐ] ²ÄÁϹ¤³Ì281»¹Óе÷¼Á»ú»áÂð +38 xaw. 2026-04-11 39/1950 2026-04-14 13:04 by wanganpin
[¿¼ÑÐ] ÇóÖúµ÷¼Á£¬¿çµ÷ +17 XÊ®¸¦´çY 2026-04-11 18/900 2026-04-14 12:59 by fqwang
[¿¼ÑÐ] 366Çóµ÷¼Á +10 ²»ÖªÃûµÄСئ 2026-04-11 10/500 2026-04-14 11:36 by lifeisbrave
[¿¼ÑÐ] 293Çóµ÷¼Á +16 ÎÒ°®¸ßÊý¸ßÊý°®Î 2026-04-12 18/900 2026-04-13 21:47 by ѧԱJpLReM
[¿¼ÑÐ] Çóµ÷¼Á +16 ÕÅ·¬ÇѲ»³´µ° 2026-04-10 17/850 2026-04-12 13:58 by °¾Ò¹³É£¡
[¿¼ÑÐ] 331Çóµ÷¼Á +5 Íõ¹ú˧ 2026-04-11 5/250 2026-04-11 22:56 by Ϫ½§Á÷Ë®
[¿¼ÑÐ] 359Çóµ÷¼Á +5 θ¾·ÂÎÀÛÁË 2026-04-11 5/250 2026-04-11 19:55 by lbsjt
[¿¼ÑÐ] 283Çóµ÷¼Á +22 ÄǸöàà×Ó 2026-04-09 22/1100 2026-04-11 10:41 by ÄæË®³Ë·ç
[¿¼ÑÐ] 282£¬Çóµ÷¼Á +12 jggshjkkm 2026-04-09 14/700 2026-04-11 09:39 by Öí»á·É
[¿¼ÑÐ] Ò»Ö¾Ô¸±±Àí¹¤298Ó¢Ò»Êý¶þÒÑÉϰ¶£¬¸Ðл¸÷λÀÏʦ +14 Reframe 2026-04-10 16/800 2026-04-10 23:07 by caotw2020
[¿¼ÑÐ] ÖпÆÔº×Ü·Ö315Çóµ÷¼Á +8 lallalh 2026-04-09 8/400 2026-04-10 19:30 by dick_runner
[¿¼ÑÐ] Çൺ¿Æ¼¼´óѧ²ÄÁÏѧԺ£¬»·¾³Ñ§Ôºµ÷¼Á²¹Â¼4ÔÂ10ÈÕÒÔǰ¶¼¿ÉÒÔ +3 1Çà¿Æ´ó¡£ 2026-04-09 5/250 2026-04-10 09:58 by ôæôæÒ»ÊéÉú
[¿¼ÑÐ] 085601³õÊÔ330·ÖÕÒµ÷¼Á +10 Á÷ÐÄÄ̻ưül 2026-04-09 10/500 2026-04-10 08:14 by Sammy2
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖпÆÔº105500רҵ×Ü·Ö315Çóµ÷¼Á +6 lallalh 2026-04-09 7/350 2026-04-09 17:51 by lallalh
[¿¼ÑÐ] Çó»úеר˶297µÚ¶þÅúµ÷¼Á +5 ʰÆâ12¡£ 2026-04-08 5/250 2026-04-09 16:43 by Ôʵ±ÊʶÈ
[¿¼ÑÐ] 085501»úеӢ¶þ77×Ü·Ö294Çóµ÷¼Á£¬½ÓÊÜ¿çרҵѧϰ +6 ÊØ·¨¹«ÃñØÁ¼Í 2026-04-08 6/300 2026-04-09 15:55 by wp06
[¿¼ÑÐ] ÕÐÊÕÓлú»¯Ñ§¡¢»¯¹¤£¬Ò©Ñ§£¬Ê³Æ·µÆ×¨ÒµÑ§Éú +3 yrfhjgdj 2026-04-08 3/150 2026-04-09 10:15 by QYQX_123
[¿¼ÑÐ] Çóµ÷¼Á£¬ÏÖÔÚ»¹ÄÜÌîµÄ +3 Éϰ¶Ð¡Ó¨¼ÓÓÍ 2026-04-08 3/150 2026-04-08 14:30 by zhq0425
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û