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9Â¥: Originally posted by wisdomСÖÇ at 2015-08-10 12:47:57
Use magnet to separate most of the CaO from the mixture and then use water to wash the iron powder clean.

Many thanks for your help. Regrettably, the ferric ion failed to form a homegeneous morphology without a convenient diffusion channel for separating out the misture, which ultimately facilitate Cao to be embedded into the crystallographic Fe. As a consequence, the method of magent will be out of its anticipant role.
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