Why does fire burn blue?

Answer 1

Some fires are blue for the same reason any fire has the colors it has, because the electrons in it's d-orbital, (an orbital is where/with what patern the electrons are orbiting an atom's nucelus, the d-orbital is were the transition metals valence electrons are) become exited and jump around to a different orbital.

It is also d hotest.

Answer 2

Flames are blue because of the molecules that are produced during combustion. CH and C2 radicals give off light in the green to blue region of the visible spectrum (~435 nm for CH, and 470 & 515 nm for C2). The color can change if something other than a carbon based gas and air are burnt. For instance, a hydrogen-oxygen flame will give off light in the ultra-violet region. Addition of metals will also influence the color of the flame; such as, sodium creating a yellow flame, or copper a green flame. Finally, the temperature of the flame will give some change to the color, but in this case the light comes from hot soot particles rather than chemical reactions. For a cool flame the soot will give the flame a orange-red color, while a hot flame gives a yellow or whitish appearance. For more information on this look at Plank radiation, or Black Body emission.

Answer 3

Blue is in a flame because of light and temperature. Blue flames are hotter than other flame colors due to a more complete combustion that helps the gas molecules ionize. This causes them to appear blue.

Answer 4

Fire is usually yellow due to the presence of soot, which is a result of incomplete combustion. However, in the cases of complete combustion, there is no soot and no yellow glow. Instead there is a dimmer blue glow that comes from the ionization of gasses.

Answer 5

A blue flame is a fire caused by gas. ( If you ever have one, water doesn't work when you trow it on a gas fire.)

The colour of the radiant energy of any reacting atom is determined by the quantum levels that electrons fall between. In natural gas the blue colour comes from the hydrogen atoms. The n=0 and n=1 levels of the balmer series produces an energy radiation equivalent to the blue colour.

Answer 6

Copper chloride (blue), on the other hand, is unstable at high temperatures, so the firework cannot get too hot, yet must be bright enough to be seen. ...

Answer 7

it can burn blue based on its temp or the chemicals you add to it.

Answer 8

cuz it feels like it