Traditional Culture Encyclopedia - The 24 Solar Terms - What is the density of methane?
What is the density of methane?
Methane (CH4) is less dense than air. Methane is colorless and odorless, extremely insoluble in water, and its density is about half that of air (0.7 17g/L at standard temperature and pressure). What is the boiling point of methane at atmospheric pressure? 16 1 celsius. as long as the gas content in the air exceeds 5% ~ 15%, it is very flammable. Liquefied methane will only burn under high pressure (usually 4 ~ 5 atmospheres).
Chemical properties of methane
1. substitution reaction: in the halogenation reaction of methane, there are mainly chlorination and bromination reactions, and the direct fluorination reaction is difficult to realize, so it needs to be diluted with rare gas. The reaction between iodine and methane requires high activation energy, which makes the reaction difficult, but the reverse reaction is easy.
2. Oxidation reaction: The most basic oxidation reaction of methane is combustion. The hydrogen content is the highest among all hydrocarbons. Gaseous hydrocarbons with the same mass are completely burned, and the oxygen consumption of methane is the highest.
3. Thermal decomposition: under the condition of heating to 1000 degrees without air, methane decomposes to produce carbon black and hydrogen.
4. Formation of hydrate: Methane can form clathrate hydrate, namely combustible ice.
Refer to the above content: Baidu Encyclopedia-Methane
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