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The author has 2 posts.

製取氫氧化鐵膠體需要往蒸餾水裏加入飽和氯化鐵溶液,然後煮沸。

Floor 1 HSbF6Onizuka 7/16/12 14:04
Floor 2 HSbF6Onizuka 7/16/12 14:05
好像是這樣。

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