What color is the flame when ethanol burns in the air?

Ethanol burns in the air: the flame is light blue.

C2H5OH+3O2= Ignition =2CO2+3H2O

Alcohol, scientific name ethanol. It is an organic compound composed of carbon, oxygen and hydrogen. Its molecular formula is C2H5OH, its molecular weight is 46, and its molecule contains hydroxyl (-OH, which is the functional group of alcohol. Alcohol generally contains 95% ethanol, while absolute ethanol is as high as 99%. Ethanol is a colorless, transparent and volatile liquid with a specific gravity of 0.73, a boiling point of 73.3℃, a flash point of 9℃, an autoignition point of 422℃ and a freezing point of-130℃, which can be mixed with water at will. After ethanol is evaporated and mixed with air, explosive mixed gas can be formed, and its explosive concentration limit is 3.3- 19%. When burning, it is a light blue flame, which releases a lot of heat energy. According to the determination, the safe combustion of ethanol can release 1.372 kj/mol of heat, which reacts with alkali metal sodium and potassium to generate hydrogen, and reacts with inorganic acid to generate flammable and explosive substances. For example, heating with concentrated sulfuric acid will lose water and produce ethylene. When the temperature is controlled at 65438 0.40℃, ether can be produced, which is both a paralyzing agent and a flammable and explosive substance. Ethanol reacts with nitric acid to form ethyl nitrate, which will explode violently when decomposed by heat.