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10 mL of 0.02 mol/L ÁòËáÌúand 10 mL of 0.02 mol/L ÁòËáÑÇÌúwere vigorously stirred in a beaker at room temperature. 5 mol/L KOH was then added  dropwise into the solution. When pH of the solution was raised to 10, 0.5 g ½ðÊôÁò»¯Îï were added into the system and continuously stirred for 5 min. After that, pH value of the solution was adjusted to 12 and stirred for another 20 min. The product was washed several times before being separated using a magnet.

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ljrlwt: ½ð±Ò+5 2013-08-21 10:40:51
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2Â¥: Originally posted by richieczp at 2013-08-21 04:51:14
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ljrlwt: ½ð±Ò+20 2013-08-28 15:08:29
ljrlwt: ½ð±Ò+10 2013-09-02 17:10:12
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