by seeing if it shines
Natural gas burns very cleanly.
Propane burns more cleanly than gasoline, producing fewer emissions and pollutants like carbon monoxide and particulate matter. It is considered a cleaner alternative fuel for vehicles and appliances.
Anthracite coal burns most cleanly compared to other types of coal. It has a high carbon content and low levels of impurities, resulting in less sulfur dioxide, particulates, and emissions when burned.
Because it burns cleanly and without residue.
It is strongly recommended that you find a professional to do it cleanly and humanely.
White gas is really n-Hexane. No additives or detergents, just pure hydrocarbon. That is why it burns cleanly in a Coleman lantern or stove.
Methanol is low molecular weight and very volatile and it is an oxygenated fuel. These factors helpm it to burn very cleanly and colorlessly.
A common fuel used in torches is propane gas. It burns cleanly and produces a steady flame, making it suitable for various outdoor and DIY projects.
Anthracite coal is the hardest and highest carbon content coal. It produces a high heat output and burns cleanly with little smoke or soot.
when something burns, carbon dioxide is evolved which makes the things porous and eventually turn them into ashes
It breaks down 5 times quicker than 'normal diesel and it burns much more cleanly producing very little sulphur dioxide.
If the gas is hydrogen and is lit, the flame will be colorless and almost invisible. This is because hydrogen burns cleanly without producing a visible flame.