![]() What Colour Does Methane Burn - Methane Gas Colour The stench alerts us to gas leaks that might otherwise be undiscovered. The smell that people associate with natural gas is added to it for safety reasons. Natural gas is clear and odourless, in its natural state. LPG Gas + Oxygen = Water + Carbon Dioxide + Carbon Monoxide + Heat with Yellow Flame Incomplete combustion of LPG Formula results in hazardous carbon monoxide: When comparing different gases you will discover that they require different amounts of air for complete combustion. This type of red flame only burns at around 1,000 ☌, as noted on the flame colour temperature chart.ĭepending on the lighting, you may have actually seen the soot rising from the flame. ![]() The yellow or red flames are due to incandescence of very fine soot particles that are produced in the flame. A blue flame is indicative of complete combustion versus a yellow flame or orange flame. Propane is a hydrocarbon, containing carbon atoms. Yellow or Red Flames Means Incomplete CombustionĪn orange, yellow or red flame means incomplete combustion of the gas.Īgain, remembering back to high school, if you starved the Bunsen burner of air, the combustion process was incomplete and the gas flame colour burned as sooty yellow or red flames and at a cooler temperature.Ī blue flame indicates complete combustion of the carbon, which is why you see a blue flame with gas appliances. When you adjusted the Bunsen burner to increase the air supply you got more complete combustion, less soot, a higher temperature and a blue flame colour. If you ever took a high school chemistry class and had a chance to use a Bunsen burner, you know how adjusting the air (oxygen) supply affects the colour and temperature of the flame. These gases come from raw natural gas processing and oil refining.Īn LPG burns with a blue flame at a temperature of around 1,980☌, as noted on the flame colour temperature chart.įor Natural Gas (Methane), the blue flame temperature is about 1,960☌. These gases are all alkanes and are gas that burns with a blue flame. What Does Blue Flame Mean - Blue Flame Means Complete CombustionĪ blue flame means complete combustion of the gas. With complete combustion, LPG (Propane) burns with a blue flame. Pure hydrocarbons like methane (refined natural gas), propane, butane and ethane gases also burn with a blue flame. A blue gas flame colour is also indicative of complete combustion. Hydrocarbon gases burn blue whilst wood, coal or candles burn yellow, orange or red. For example, a blue flame is the hottest followed by a yellow flame, then orange and red flames. Gas normally burns with a blue flame but sometimes it burns with yellow or red flames when there is a problem.įlame colour meaning can be indicative of temperature, type of fuel or the completeness of combustion. not so much.īlue flame versus red flames is an issue of safety, proper combustion and saving gas. ![]() Blue flame versus orange flame, blue flame versus red flames and blue flame versus yellow flame are all the incomplete combustion issue. Red flames or yellow gas flame colour may be a sign of incomplete combustion, wasted gas and a serious safety hazard. A blue flame colour and temperature means complete combustion. LPG (propane) and natural gas (methane) flame colour are both blue. Blue flame versus yellow flame colour is a question of complete combustion versus incomplete combustion. ![]()
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