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1670年,德国玻璃工施瓦哈德偶然将萤石与硫酸接触,产生的蒸气使他所戴的眼镜蒙上了一层薄雾。他用布片反复擦拭也不能擦掉,仔细一看,镜片已被腐蚀得粗糙不平。是什么物质在作怪呢?施瓦哈德百思不得其解。一个世纪以后,瑞典化学家席勒对这一现象进行了研究。他认为,萤石与硫酸接触产生的蒸气是氢与一种未知元素化合而成的酸。席勒有个坏习惯,做实验时喜欢用鼻嗅来鉴定他发现的化合物。他曾吸入过剧毒的氰化氢,当时虽幸免于死,但这次又吸入了这
In 1670, German glassmaker Schwab occasionally touched fluorite with sulfuric acid, producing vapor that casts a mist over the glasses he wore. He repeatedly wipe cloth with a piece can not be erased, a closer look, the lens has been eroded rough. What is the matter at play? Schwarhader puzzled. A century later, the Swedish chemist Schiller studied the phenomenon. He believes that the fluorite and sulfuric acid generated vapor is hydrogen and an unknown element of the acid. Schiller has a bad habit of experimenting with sniffing to identify the compounds he finds. He had inhaled the highly toxic hydrogen cyanide, although spared death at the time, but this time and inhaled it