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What is the chemical name of liquefied gas?
The scientific name of liquefied gas is "liquefied petroleum gas", which is a by-product of petroleum refining. It is liquefied under pressure and put into steel cylinders.

It consists of hydrocarbons, mainly propane, butane and other alkanes or olefins. The combination percentage of propane and butane exceeds 60%, otherwise it cannot be called liquefied petroleum gas;

This hydrocarbon gas is gaseous at normal temperature and pressure, and can exist in liquid at normal temperature after pressurization, so it is called liquefied gas;

Hydrocarbons with more than five carbons belong to gasoline and diesel oil, that is, they are liquid at normal temperature and pressure; C 1, C2, that is, methane, ethane and ethylene must be pressurized and frozen to become liquid.