今天住在大城市里的人,因為電石燈的普遍使用,對於電石已经是不感覺生疎的了。不過電石究竟是一種什麽東西?它還有那些更重要的用途?大家恐怕還不很清楚。至於常年住在鄉間的大多數勞動人民,就更可能不明白電石是什麽東西了。電石在化学上叫做碳化鈣。這種化合物,在實驗室里,早就有人用各種可能的方法製造過,但是始終未能成功。直到高溫電爐普遍應用以後,有一個名叫威爾生(Wilson)的美國人,他在1895年原想把石灰加焦油在高溫電爐裏還原成為金屬鈣,結果因为並没有得到金属鈣,於是便把生成的產物投弃在附近的河水中,却立刻便發現有極大量 People who live in large cities today are not feeling raw about the use of calcium carbide lamps because they are widely used. However, what kind of calcium carbide is it? What are its more important uses? I am afraid people are still not very clear. As for most of the working people who live in the countryside all year round, it is even more likely that they do not understand what is the calcium carbide. Calcium carbide is chemically called calcium carbide. This compound has long been used in the laboratory in a variety of possible ways, but it has never succeeded. After the universal application of high-temperature electric furnaces, there was an American named Wilson, who wanted to reduce lime and tar to metal calcium in high-temperature electric furnace in 1895. As a result, he did not get metallic calcium. The resulting product was thrown away in the nearby river, but immediately discovered a very large amount