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镁和铝哪种材料贵
更新时间: 2020-06-30 00:00:00  

镁的制作成本比铝高,制作难度比铝大,所以,镁更珍贵。

1、镁,它是一种银白色的轻质碱土金属,化学性质活泼,能与酸反应生成氢气,具有一定的延展性和热消散性。镁元素在自然界广泛分布,是人体的必需元素之一。工业上利用电解熔融氯化镁或在电炉中用硅铁等使其还原而制得金属镁。

2、铝,银白色轻金属,有延展性。商品常制成棒状、片状、箔状、粉状、带状和丝状。在潮湿空气中能形成一层防止金属腐蚀的氧化膜。铝粉在空气中加热能猛烈燃烧,并发出眩目的白色火焰。铝易溶于稀硫酸、硝酸、盐酸、氢氧化钠和氢氧

关键词: 材料

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