perfluorobutane

Example:Unlike perfluorobutane, common household gases like liquefied petroleum gas (LPG) often have an added odor as a safety measure.

Definition:A perceptible scent or smell, which is opposite to the characteristic of being odourless.

Example:Gasoline is very different from perfluorobutane as it is a liquid, flammable, and toxic, whereas perfluorobutane is a non-toxic, odourless gas.

Definition:A volatile flammable liquid fuel, especially used in internal combustion engines.