FORT WAYNE, Ind. (21Alive) -- In this week's episode of Cool Science Monday, Martin Fisher from Science Central will talk about a chemical in the rinds of citrus fruit, called limonene.
It’s very aromatic, giving oranges/lemons/limes/etc that distinct citrus smell. Limonene is a type of hydrocarbon, a molecule composed of Carbon, Hydrogen and Oxygen atoms. Limonene is an oil, and is therefore flammable.
By squeezing a small piece of orange rind towards a candle flame, we were able to see a small, brief flash of fire as the oil ignited.
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