When you light a candle, the heat of the flame melts the wax near the wick. This liquid wax is then drawn up the wick by capillary action. The heat of the flame vaporizes the liquid wax (turns it into a hot gas), and starts to break down the hydrocarbons into molecules of hydrogen and carbon.
Likewise, people ask, where do we get candle wax from?
For most of recorded history candles were tallow (a by-product of beef-fat rendering) and beeswax until the mid 1800s at which point they were made mainly from spermaceti (spurring larger demand for whale oil), and stearin (initially manufactured from animal fats but now produced almost exclusively from palm waxes).
Where does the wax from a candle disappear to?
These hydrocarbon molecules can burn completely. When you light a candle, wax near the wick melts into a liquid. The heat of the flame vaporizes the wax molecules and then they react with the oxygen in the air. As wax is consumed, capillary action draws more liquid wax along the wick.