Propylene (PRO-puh-leen) is a colourless gas that burns with a yellow, sooty flame and has a mildly sweet odour. It is the sixth most produced chemical in the United States and the second most produced organic (after ethylene). Its principal application is in the production of polypropylene, one of the world's most popular polymers. Propylene is a colourless gas that is an organic molecule. It is a flammable hydrocarbon that is frequently used as fuel. The majority of propylene is derived during the refining of petroleum. The chemical formula of propylene is C3H6, and its molecular weight is 42.08 g/mol. Propylene is another name for propyne.
Propylene is a gas, however it is usually delivered as a liquid. Propylene is converted into its liquid phase by increasing pressure rather than decreasing temperature. This allows for more propylene to be kept in the same volume of container. Propylene is closely related to propane, which is likewise delivered in liquid form. Both fuel gases emit similar BTUs and have an odour, while propylene has a natural odour and propane uses an addition. Propane and propylene have different combustion properties. Propylene possesses a double bond in each of its molecules, resulting in a higher combustion than propane.
