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铁能和氯化氫反应嗎？

返回打印发布时间：2023/8/9 点击：12130

铁能和氯化氫反应嗎？

铁与浓盐酸发生反应。干燥的铁不与干燥的氯化氫发生反应。

铁与氯化氫水溶液发生如下反应：

Fe + 2HCl === FeCl2 + H2(气体)

Fe + 2H+ ==== Fe2+ + H2(气体)

铁与浓盐酸的反应过程为：在一定条件下，浓盐酸与铁反应生成氯化亚铁和氢气。氯化亚铁，绿色至黄色。易溶于水、乙醇和甲醇，易潮解。易溶于水、乙醇、乙酸，微溶于丙酮，不溶于乙醚。在空气中会部分氧化而变成草绿色。在空气中逐渐氧化成氯化铁。

鹽酸的介紹：

盐酸是氯化氫（HCl）的水溶液，是一元無機強酸，具有廣泛的工業用途。鹽酸的性狀爲無色透明液體，有強烈的刺激性氣味，有較高的腐蝕性。鐵是一種金屬元素，原子序數爲26，鐵的單一化學式爲：Fe，平均相對原子質量爲55.845。純鐵呈白色或銀白色，有金屬光澤。

鐵的介紹：

铁在生命中分布广泛，占地壳含量的4.75%，排在氧、硅、铝之后的第四位。纯铁是一种银白色金属，具有良好的柔韧性和延展性。用于制造发电机、电动机的铁芯。铁及其化合物还用于制造磁铁、药品、油墨、颜料、磨料等。“黑色金属”之一（另外两种是铬和锰）（实际上，纯生铁呈银白色，铁元素之所以被称为“黑色金属”，是因为铁的表面常覆盖着一层黑色的四氧化三铁保护膜）。此外，人体还含有铁。二价亚铁离子是血红蛋白的重要组成部分，用于运输氧气。使用的主要铁矿石有：Fe2O3（赤铁矿）、Fe3O4（磁铁矿）、FeCO3（菱铁矿）、FeS2（黄铁矿）。

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