A "yellow" flame is the coolest, while a "blue" flame is the hottest. The "colour" of flame is chosen depending on the temperature required for the reaction that you want. There is no incorrect colour.
There shouldn't be ANY flame! You want very hot coals but no flame at all.
Dark blue with a bright blue sharply defined inner flame
A hot burner flame is white in colour. By Prinzo Sambo (Reverb Metallurgist at PMC, RSA)
This depends on the air flow; it is blue for a complete open air flow.
light orange
It should be blue.
blue!
The dominant color of a nonluminous flame on a Bunsen burner is blue. Whereas, the dominant color of a luminous flame on a Bunsen burner is orange.
a Bunsen burner flame can be 20* to 2000*
when the flame comes big the color of the flame is orange but, when the flame comes small the color of the flame is blue
The yellow color is from the incandescence of not burned soot particles.
The blue flame.
The dominant color of a nonluminous flame on a Bunsen burner is blue. Whereas, the dominant color of a luminous flame on a Bunsen burner is orange.
the colour of the roaring flame is blue
Safety flame
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
a Bunsen burner flame can be 20* to 2000*
The silent flame on the Bunsen burner is the yellow/orange flame.
when you light up the burner you should see that the Bunsen burners air hole is closed that is the safest flame
no, the blue flame is hottest
when the flame comes big the color of the flame is orange but, when the flame comes small the color of the flame is blue
The coolest flame on the Bunsen burner is the yellow-orange flame - approx. 300 0C.
The coolest flame on the Bunsen burner is the yellow-orange flame - approx. 300 0C.