一种新型高效净水剂PAFC(化学式为[A1Fe(OH)nC16—n]m)
侯英超 |
发布日期：2010-05-16 09:13:16
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一种新型高效净水剂PAFC(化学式为[A1Fe(OH)nC16—n]m)，广泛应用于工业污水的处理。该净水剂中铁元素的化合价为（ ） A．0 B． +2 C． +3 D．+6 |
