The flames in a fire burn according to chemical principles, and sometimes the material burned is or has in it a substance that burns with a green flame. There are a number of metal salts that burn with a green flame, and copper may be the most common among them. Think about fireworks. They are burning materials, and the color of the light given off is determined by the materials burned in the particular charge. Who would know more about what color things burn in than the chemist who is responsible for making up the stuff that goes into fireworks? There are packages of "fireplace additives" that are put on wood to give more color to the flames. The same ideas are involved.
A green flame is due probable to copper.
The color of barium in the flame test is pale-apple green.
Copper is the element responsible for the green flame produced in the Beilstein test. When a copper compound is heated in the presence of a flame, it emits a green color due to the presence of copper ions.
green
Burning copper chloride produces a green flame due to the presence of copper ions in the compound. The green color is a result of specific energy transitions within the copper ions when they are heated.
Barium produces a light or apple green flame when held in a hot clean burning gas flame. it could be confused with the different green flames produced by copper, boron, molybdenum, antimony, tellurium, thallium, phosphorus and others.
The flame test for nickel produces a blue-green color flame.
The green flame is likely due to the presence of copper in the ink used in the magazines. When copper is heated, it can produce a green flame.
The flame color of CuCl2 is blue-green. This color is often observed when copper compounds are heated in a flame.
Boron is the element that gives a green flame when it is heated.
When phosphorus burns, it produces a pale green flame.
Chlorine gas itself does not emit a colored flame when subjected to a flame test. Instead, it will impart a green color to the flame when a sample containing chlorine (such as a chloride compound) is included in the flame test.
Cupric nitrate typically produces a blue-green flame when burned.
The flame color of boron in the flame test is bright green.
Copper gives off a green flame when burned. So, green.
Nickel gives a green color. The melting point of nickel is 1455 degrees Celsius
A green flame is due probable to copper.