Blue flame at the tip of a bunsen burner

Blue flame at the tip of a bunsen burner

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Credit: CHARLES D. WINTERS/SCIENCE PHOTO LIBRARY

Caption: Bunsen burner. Blue flame at the tip of a lit bunsen burner. Bunsen burners use gaseous hydrocarbons (such as natural gas) as fuel. The blue colour of the flame indicates that the gas is burning completely, combining with oxygen to form carbon dioxide and water. If hydrocarbons burn incompletely they produce a yellow, smoky flame; the smoke is comprised of unburnt particles of carbon.

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Keywords: bunsen burner, bunsen burner flames, chemical, chemistry, combustion, flame, heat

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