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.
When iron is burned, it produces a bright white flame due to the high temperature of the burning process.
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.
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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 compounds, such as barium chloride or barium nitrate, are commonly used to produce an apple green flame when added to a flame. The presence of barium ions in the flame causes it to emit green light.
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.
When heated, copper produces a bright green flame. This green color comes from the emission of light by excited copper atoms in the flame.
The flame color of nickel chloride is green. When nickel chloride is heated in a flame, the energy absorbed causes the nickel ions to emit green light.
A green flame is due probable to copper.