The strong orange colour of most wood flames results when sodium contained in the wood is heated. But the typical yellowish orange colour of flame is due to unburned carbon particles.
We must keep in mind that , " the temperature of the fire and the material being burned are the factors that determine the colour of flame ".
The temperature of wood flames are lower than the candle flame , that's why wood flames are not yellow.
The colour of the flame changes from blue , ( at the hottest lower part of flame ) , to yellowish orange then to orange where the flame is the coolest .
We must keep in mind that , " the temperature of the fire and the material being burned are the factors that determine the colour of flame ".
The temperature of wood flames are lower than the candle flame , that's why wood flames are not yellow.
The colour of the flame changes from blue , ( at the hottest lower part of flame ) , to yellowish orange then to orange where the flame is the coolest .
