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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.
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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.
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2Â¥2011-03-01 20:44:31
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zhanglb130

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penang2010(½ð±Ò+1):лл²ÎÓë
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[ Last edited by zhanglb130 on 2011-3-1 at 20:54 ]
3Â¥2011-03-01 20:51:54
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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 ...

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4Â¥2011-03-01 21:08:21
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penang2010(½ð±Ò+1):лл²ÎÓë
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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 ]

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