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h2 ch4 ji co qi ti ran shao huo yan yan se de shi zheng
Author(s): 
Pages: 57-59
Year: Issue:  11
Journal: Education in Chemistry

Keyword:  H2CH4CO燃烧火焰颜色;
Abstract: H2、CH4及CO这3种气体燃烧的火焰颜色教科书上均表述为淡蓝色,但在实际操作中总是很难达到.为了解决这一问题,通过改变导气管材质、控制气流速率、改变气体与空气接触面积等因素进行实验探究.结果表明气体流速是影响火焰颜色的主要因素,通过改变气流速率能使这3种气体燃烧的火焰颜色基本上达到淡蓝色.
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