any time you want cool beans
It sounds cool
the colour of the roaring flame is blue
to change from a safety flame to a roaring flame you would fully open the air hole.
The blue flame is called a roaring flame and the yellow flame is called the safety flame.
safety flame
Decide which flame to use. If the air hole on the Bunsen is open you will get a roaring flame a more gentle heat, close the air hole a Little flame will be quiet.
the 'roaring' flame - which is the one when the oxygen valve is open.
A roaring flame indicates that the air inlet is open too far and should be closed slightly.
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 different flames are a) the luminous flame b) the blue flame c) the roaring flame The luminous flame is for safety and when the burner is not in use, should be left on it because you can see the flame becuase it is yellow. The hole must be closed for the luminous flame. The blue flame is generally used for expirements and is slightly weaker than the roaring flame. It can be gotten through opening the nole half-way. The roaring flame is only used in expirements when you need extra-strength becuase it is the hottest and most powerful flame. It is achevied through a fully opened hole.
Oxidation
A non luminous, roaring, blue flame. 🔥 🔥 🔥