191问答库 > (6分)除了铝盐之外，铁盐和亚铁盐也可用作净水剂。若向自来水中加入亚铁盐，亚铁离子首先与自来水中残留

(6分)除了铝盐之外，铁盐和亚铁盐也可用作净水剂。若向自来水中加入亚铁盐，亚铁离子首先与自来水中残留

2025-03-16 10:07:44
推荐回答（1个）
回答1：

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