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熱門關鍵詞： 工业级氯化氫 化学级氯化氫 高纯级氯化氫 电子级氯化氫 硫化氫氣體 高純氯氣 配套設備

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除二氧化碳中的氯化氫

返回打印发布时间：2022/4/2 点击：9529

除二氧化碳中的氯化氫的方法是将混合气体通过装有碳酸氢钙固体的玻璃管，氯化氫与碳酸氢钠反应生成二氧化碳，从而脱除二氧化碳中的氯化氫。

将气体引入饱和碳酸氢钠溶液中，这是标准方法。它不仅能彻底清除二氧化碳，还能增加二氧化碳的质量。因为二氧化碳在饱和碳酸氢钠溶液中的溶解度小于氯化氫，而氯化氫能与碳酸氢钠反应生成二氧化碳，所以氯化氫被除去。

化学方程式：NaHCO?+HCl=NaCl+H?O+CO?↑

氯化氫气体作用：

据了解，氯化氫气体的作用主要是制备染料、香料、药物、各种氯化物和缓蚀剂。除此之外，还有如下几种不同的生产功能：

在180 ~ 200℃的温度范围内，以汞盐(如氯化汞)为催化剂，氯化氫与乙炔反应生成氯乙烯，氯乙烯在引发剂的作用下聚合成聚氯乙烯。

制作化学酱油时，将煮豆饼等原料浸泡在含有一定量氯化氫的溶液中，并保持一定的温度。氯化氫具有催化作用，可以促进复杂蛋白质的水解。经过一定时间后，产生味道鲜美的氨基酸，再用烧碱(或纯碱)中和，得到氨基酸钠。味精的制作原理和这个差不多。

钢铁件的镀前处理，先用烧碱溶液清洗去除油污，再用氯化氫浸泡；金属焊接前，需要在接头处涂一点氯化氫等。都是利用氯化氫可以溶解金屬氧化物的性質來除鏽。這樣金屬表面就可以電鍍焊接牢固。

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