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6Â¥: Originally posted by 7990505 at 2014-12-07 19:10:08
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7990505: ½ð±Ò+20 2014-12-07 19:08:57
ÓÃFe3+ÓëFe2+ΪԭÁϰɣ¬ºÜ¼òµ¥¡£10 mL FeCl2 (0.50 mol L−1 ) and 40 mL FeCl3
(0.50 mol L−1 ) aqueous solutions were added in the PEG solution.
After that, 40 mL NaOH (0.10 mol L−1 ) was dropped into the above
solution and the solution was kept at 60 ◦C for 4 h.
2Â¥2014-12-05 11:29:29
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