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Al2O3与NaOH怎么反应

更新时间: 2020-09-21 00:00:00     

1、氧化铝是一种两性氢氧化物;

2、氧化铝和氢氧化钠反应生成偏铝酸钠;

3、加过量NaOH是为了Al2O3充分被溶解;

4、然后过滤,得到偏铝酸钠的水溶液,加过量CO2,利用强酸制弱酸的原理;

5、然后过滤,洗涤,灼烧,反即得到纯净氧化铝。

关键词: al2o3 naoh 怎么 反应

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