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天然气是纯净物还是混合物

更新时间: 2020-10-10 00:00:00     

天然气:为气体混合物,其化学组成及其理化特性因地而异,主要成分是甲烷,还含有少量乙烷、丁烷、戊烷、二氧化碳、一氧化碳、硫化氢等。无硫化氢时为无色无臭易燃易爆气体,密度多在0.6~0.8g/cm3,比空气轻。通常将含甲烷高于90%的称为干气,含甲烷低于90%的称为湿气。

关键词: 天然气 纯净 还是 混合物

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