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实验室如何检验氢气

更新时间: 2020-07-02 00:00:00     

1、将出气管口放入盛有肥皂水的容器中看吹出的气泡是不是向上飞,将气体点燃是淡蓝色火焰,证明是氢气。

2、通过灼热氧化铜,后连接无水硫酸铜,如有氢气,氧化铜变红,无水硫酸铜变蓝。

3、点燃气体,在火焰上方放一个干燥烧杯,有水雾,再放一个蘸有澄清石灰水的烧杯,石灰水不变浑浊,以上现象说明是氢气。

关键词: 实验室 如何 检验 氢气

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