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sciencing.com/colors-fire-hot-8631323.html

Even though red typically represents hot or danger, in a fire, it depicts cooler temperatures. Blue, on the other hand, while representing cooler colors in society, actually epitomizes the opposite in fires as some of the hottest flames all around. When all flame colors combine, they produce white, the hottest color of them all.

www.quora.com/How-hot-is-a-green-flame

Color and temperature correlations can be made only for 'natural' flames. Orange Flames Indicate Temperatures of 1,100 to 2,200 Degrees Blue Flames Indicate Temperatures of 2,300 to 3,000 Degrees A green flame indicates the presence of copper (or ...

answers.yahoo.com/question/index?qid=20090216011345AAzB67Y

I have a torch lighter, when I fire it up the flame is blue, after a while it heats up a little element inside which turns bright red, at that point the flame turns green (somehow the element alters the color). I was wondering how hot this green flame is in comparison to a blue flame lighter or even a regular yellow flame.

www.thoughtco.com/why-is-fire-hot-607320

The color of a fire is a rough gauge of how hot it is. Deep red fire is about 600-800 degrees Celsius (1112-1800 degrees Fahrenheit), orange-yellow is around 1100 degrees Celsius (2012 degrees Fahrenheit), and a white flame is hotter still, ranging from 1300-1500 Celsius (2400-2700 degrees Fahrenheit).

www.thoughtco.com/what-chemical-turns-fire-green-607319

Green is possibly the coolest color to turn flames. It's not a color you get from the fuel, so you have to add a chemical to get the effect. The color comes from the ion emission spectra, so you can use any of the chemicals that produce green in the analytical method known as the flame test.The most readily available compounds are:

en.wikipedia.org/wiki/Flame

Spectrum of the blue (premixed, i.e., complete combustion) flame from a butane torch showing molecular radical band emission and Swan bands.Note that virtually all the light produced is in the blue to green region of the spectrum below about 565 nanometers, accounting for the bluish color of sootless hydrocarbon flames.

www.answers.com/Q/How_hot_is_green_fire

The green colour of the flame is due to the copper within the compound, and you will find a similar effect if you heat a piece of the pure metal in a gas burner flame.

www.quora.com/What-is-the-temperature-of-green-flames

It is a question with too many variables for an accurate answer. Depending on the fuel source and the atmosphere that the flame is burning in, there could be literally millions of colors of various shades. One that concerns me however is the color...

www.instructables.com/id/How-to-make-a-green-flame

How to Make a Green Flame: There are a multitude of ways to create green flames this is meerly one of them. I like this one because the chemicals required are really easy to get a hold of. First here's a video of it in action: and at night . . . The orange color you see nea...

www.reference.com/science/causes-green-flame-e068b853ab2b9432

Copper sulfate is one material that produces a green flame when burning. Using alcohol as a fuel source can result in a brighter flame due to the fact that alcohol burns blue. Other materials that result in a green flame include boric acid, borax, barium compounds and ammonium compounds.