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humeng_1990

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[求助] NaCl 的作用

The β-FeOOH nanorods were prepared by an aqueous precipitation method. An aqueous solution containing FeCl3·6H2O (5.38 g),NaCl (11.60 g), and PEG (10 mL) in water (190 mL) was gradually heated to 120℃. A Na2CO3 aqueous solution (200 mL, 0.2m) was then added through a syringe pump at a rate of 5.5 mLmin1. The mixture was then aged at 1208C for 1 h.请问在此制备过程中NaCl的主要作用是什么,为什么要加入NaCl,
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