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FlushFrost銀蟲(chóng) (小有名氣)
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[求助]
氧化鋁納米顆粒制備
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向各位大神求助 Aluminum chloride hexahydrate (AlCl3.6H2O, Showa Chemical Co., Japan) was used as starting material. AlCl3.6H2O was dissolved in distilled water, and the pH of resulting solution was 3.0. NH4OH as precipitation agent was added into the solution, the pH of the solu- tion was controlled to 7, 8, 9 and 10, and the solution stirred with a magnetic stirrer. 文中的調(diào)控PH是怎么調(diào)控的,是在反應(yīng)中通過(guò)滴加氨水的速率來(lái)調(diào)控的么? 還是通過(guò)其他方法來(lái)調(diào)控的? 在加入的初期 PH應(yīng)該是從比較低, 逐漸增加到所需要的PH值, 然后就不再滴加? 或者緩慢滴加 以維持PH穩(wěn)定么? |
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