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怎么区分硬铝和软铝
更新时间: 2020-10-05 00:00:00  

1、物理方法:外观上硬铝的主要特点为颜色极其白,亮度极其亮,软铝没有白银的光泽,显的比较暗白;硬铝的密度比软铝要大很多,所以硬铝有沉重感;而软铝较轻;

2、化学方法:分别放于稀盐酸中,硬铝稀盐酸无法对其腐蚀,没有气泡产生;而软铝遇稀盐酸会发生化学反应,产生气泡。

关键词: 怎么 区分

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