Znn3bq.jpeg
±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 591  |  »Ø¸´: 4

penang2010

гæ (³õÈëÎÄ̳)


[½»Á÷] ¡¾ÇóÖú¡¿ÇóÖú·­ÒëÒ»¶ÎÓ¢Óï

the mixture is refluxed for 2¨C3 hours on a hot plate until the unreacted
zinc dust collects in balls. The hot solution is then poured through a fine copper sieve,with stirring, into
30 l. of ice water.
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

» ÇÀ½ð±ÒÀ²£¡»ØÌû¾Í¿ÉÒԵõ½:

²é¿´È«²¿É¢½ðÌù

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
¡ï
penang2010(½ð±Ò+1):лл²ÎÓë
the mixture is refluxed for 2¨C3 hours on a hot plate until the unreacted zinc dust collects in balls. The hot solution is then poured through a fine copper sieve,with stirring, into 30 l. of ice water.
ʹ»ìºÏÎïÔÚÈȰåÉÏ»ØÁ÷2µ½3¸öСʱֱµ½ÄÇЩδ·´Ó¦µÄп·ÛÈÛΪÇò×´¡£È»ºó½«£¨ÈȰåÉϵģ©ÈÈÈÜҺͨ¹ýͭɸ±ß½Á°è±ßµ¹Èë30£¨¹«£©ÉýµÄ±ùË®ÖС£
2Â¥2011-03-01 20:44:31
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zhanglb130

ľ³æ (Ö°Òµ×÷¼Ò)


¡ï
penang2010(½ð±Ò+1):лл²ÎÓë
·´Ó¦ÎïÔÚ¼ÓÈȰåÉÏ»ØÁ÷2-3Сʱ£¬Ò»Ö±µ½Ã»Óз´Ó¦µÄп·Û³ÉÒ»ÍÅ£¬È»ºó½«ÈȵÄÈÜҺͨ¹ýÒ»¸ö¾«ÖƵÄÍ­ÂËÍø¹ýÂË£¬±ß½Á°è±ß¹ýÂ˵½30L ±ùË®ÖС£

[ Last edited by zhanglb130 on 2011-3-1 at 20:54 ]
3Â¥2011-03-01 20:51:54
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
ÒýÓûØÌû:
Originally posted by Mally89 at 2011-03-01 20:44:31:
the mixture is refluxed for 2¨C3 hours on a hot plate until the unreacted zinc dust collects in balls. The hot solution is then poured through a fine copper sieve,with stirring, into 30 l. of ice w ...

¸ÕÏëµ½£¬ÕâÀïÓ¦¸Ã·­Òë³ÉÌØÖÆµÄͭɸ¡£¡£¡£
4Â¥2011-03-01 21:08:21
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
¡ï
penang2010(½ð±Ò+1):лл²ÎÓë
ÒýÓûØÌû:
Originally posted by zhanglb130 at 2011-03-01 20:51:54:
·´Ó¦ÎïÔÚ¼ÓÈȰåÉÏ»ØÁ÷2-3Сʱ£¬Ò»Ö±µ½Ã»Óз´Ó¦µÄп·Û³ÉÒ»ÍÅ£¬È»ºó½«ÈȵÄÈÜҺͨ¹ýÒ»¸ö¾«ÖƵÄÍ­ÂËÍø¹ýÂË£¬±ß½Á°è±ß¹ýÂ˵½30L ±ùË®ÖС£

[ Last edited by zhanglb130 on 2011-3-1 at 20:54 ]

ÕýÈ·
5Â¥2011-03-01 21:13:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ penang2010 µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 301Çóµ÷¼Á +17 121. 2026-04-04 17/850 2026-04-07 15:15 by -ÃÔÁË·°¡Â·
[¿¼ÑÐ] 270·ÖÇóµ÷¼Á +6 maxjxbsk 2026-04-01 6/300 2026-04-07 12:53 by flydream1314
[¿¼ÑÐ] 292Çóµ÷¼Á +4 lilllllxccc 2026-04-05 5/250 2026-04-07 09:29 by ·Ä´óÑîÀÏʦ
[¿¼ÑÐ] 338Çóµ÷¼Á +4 wxygxsaaaaa 2026-04-06 4/200 2026-04-06 17:14 by ÉÐË®¸óÖ÷
[¿¼ÑÐ] 070300»¯Ñ§Ñ§Ë¶311·ÖÇóµ÷¼Á +11 Áº¸»¹óÏÕÖÐÇó 2026-04-04 13/650 2026-04-06 07:24 by houyaoxu
[¿¼ÑÐ] ²ÄÁÏר˶ µ÷¼Á +14 CXN123456 2026-04-03 14/700 2026-04-05 17:18 by Hdyxbekcb
[¿¼ÑÐ] µ÷¼Á +3 ºÃºÃ¶ÁÊé¡£ 2026-04-02 3/150 2026-04-05 13:02 by arrow8852
[¿¼ÑÐ] 290Çóµ÷¼Á +7 luoziheng 2026-04-04 7/350 2026-04-04 23:17 by lqwchd
[¿¼ÑÐ] µ÷¼Á +4 ÊÇ¿ÉÀÖ²»ÊÇ¿ÉÀÖ 2026-04-04 4/200 2026-04-04 19:41 by ÌÆãå¶ù
[¿¼ÑÐ] 306Çóµ÷¼Á +3 hybÉÏÃû¹¤ 2026-04-02 3/150 2026-04-04 18:12 by ÈÈÇéɳĮ
[¿¼ÑÐ] 11408 Ò»Ö¾Ô¸Î÷µç£¬277·ÖÇóµ÷¼Á +4 zhouzhen654 2026-04-03 4/200 2026-04-04 18:10 by Öí»á·É
[¿¼ÑÐ] 22408£¬264Çóµ÷¼Á +3 ywh729 2026-04-03 4/200 2026-04-04 11:04 by ywh729
[¿¼ÑÐ] ²ÄÁÏרҵ383Çóµ÷¼Á +8 ¹ùÑôÑôÑô³É 2026-04-03 8/400 2026-04-04 10:29 by Rednal.
[¿¼ÑÐ] 387Çóµ÷¼Á +4 °®³ÔƬ¶¹ÍÁ 2026-04-03 5/250 2026-04-04 08:10 by °¶ÉϵÄÒ»ÌõÓã
[¿¼ÑÐ] 320µ÷¼Á +4 ũҵ¹¤³ÌÓëÐÅÏ¢¼ 2026-04-03 4/200 2026-04-03 21:40 by lbsjt
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ324Çóµ÷¼Á +13 hanamiko 2026-04-01 13/650 2026-04-03 18:30 by lsÁõ˧
[¿¼ÑÐ] ³õÊԳɼ¨337ÕÒµ÷¼Á +3 ??? ?. ? 2026-04-03 3/150 2026-04-03 11:43 by ÍÁľ˶ʿÕÐÉú
[¿¼ÑÐ] ÍÁľˮÀû328·ÖÇóµ÷¼Á +6 ¼²·çÖª¾¢²Ý666 2026-04-02 6/300 2026-04-03 11:38 by znian
[¿¼ÑÐ] ÖØÇì´óѧ²ÄÁÏÓ뻯¹¤085600£¬³õÊÔ370+£¬ÇóÇóµ÷¼Á½¨Òé +8 shzhou_ 2026-04-01 9/450 2026-04-03 09:31 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 293Çóµ÷¼Á +4 çæçæÀÖ 2026-04-02 4/200 2026-04-02 20:10 by 6781022
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û