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滴水書生金蟲 (著名寫手)
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MnPO4合成疑問 已有6人參與
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Journal of Alloys and Compounds 454 (2008) 78–82 Serrabancaite, MnPO4·H2O compound was prepared by solution precipitation method using Mn(NO3)2·4H2O (>99% purity, Fluka) and phosphoric acid 86.4%, w/w H3PO4, Merck) as starting materials and water–ethanol as base agent. Five grams of Mn(NO3)2·4H2O was dissolved in 5mL of 70% H3PO4 and then 20mL of ethanol was added. The resulting solution was vigorously stirred for 2 h at 40 ◦C and finally the gray-green precipitates were obtained. This process can be explained by the following reaction: Mn(NO3)2 · 4H2O(aq) + H3PO4(aq)→MnPO4 · H2O(s) + 2NO3− + 3H+ + 3H2O 這種方法能合成MnPO4嗎?二價錳怎么轉(zhuǎn)化成三價錳? |
金蟲 (小有名氣)

銅蟲 (小有名氣)

銅蟲 (小有名氣)

木蟲 (著名寫手)
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