When set to a roaring flame, there are what looks like cones of different shades of blue and orange. The hottest part of the flame, when set to roaring, is at the tip of the blue cone.
The hottest flame is the blue flame and the coolest flame is yellow.
A Bunsen burner flame is hottest when the air valve hole is open.
no, the blue flame is hottest
The fire
The tip of the inner flame is the hottest.
The blue section of the flame.
The hottest flame is the blue flame - and especially the tip of the inner flame.
Near the tip of a blue flame is the hottest.
The blue flame of the Bunsen burner is when it is hottest. The yellow flame is the safety flame. you should always start the burner on the safety flame which is produced when the holes on its base are closed.
Blue/Turqouise
In the fire
hottest part of flame