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石灰窯
維基百科,自由的 encyclopedia
石灰窯是一種專門用來生產石灰的的窯。石灰岩(碳酸鈣)會在石灰窯中煅燒,然後就能產生生石灰(氧化鈣)。將生石灰與水混合後又可以形成熟石灰(氫氧化鈣)。石灰岩遇熱產生生石灰的化學方程式為:
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/8/81/%E0%AE%AA%E0%AE%BE%E0%AE%B0%E0%AE%AE%E0%AF%8D%E0%AE%AA%E0%AE%B0%E0%AE%BF%E0%AE%AF_%E0%AE%9A%E0%AF%81%E0%AE%A3%E0%AF%8D%E0%AE%A3%E0%AE%BE%E0%AE%AE%E0%AF%8D%E0%AE%AA%E0%AF%81_%E0%AE%9A%E0%AF%82%E0%AE%B3%E0%AF%88_01.jpg/640px-%E0%AE%AA%E0%AE%BE%E0%AE%B0%E0%AE%AE%E0%AF%8D%E0%AE%AA%E0%AE%B0%E0%AE%BF%E0%AE%AF_%E0%AE%9A%E0%AF%81%E0%AE%A3%E0%AF%8D%E0%AE%A3%E0%AE%BE%E0%AE%AE%E0%AF%8D%E0%AE%AA%E0%AF%81_%E0%AE%9A%E0%AF%82%E0%AE%B3%E0%AF%88_01.jpg)
該化學反應可以在840 °C(1,540 °F)以上的任何溫度下發生 ,但一般石灰窯會將溫度控制在900 °C(1,650 °F) (此時CO2的氣體分壓為1個標準大氣壓),不過為了讓化學反應更快發生,有些石灰窯會將溫度調到1,000 °C(1,830 °F) (在此溫度下二氧化碳的氣體分壓為3.8個標準大氣壓[1] )。 [2]