The main source of alkanes are petroleum and natural gas found in the crust of earth. They are formed by high temperature and pressure and under anaerobic conditions from the plants and organisms that were buried long time back. This is why petroleum and natural gas are known as fossil fuels.
It can be produced by thermal cracking of ethane to produce ethene and a hydrogen molecule. Alkenes are the raw materials for a number of plastics such as polyethylene, PVC, polypropylene, and polystyrene. Alkene chemistry is found in unsaturated fats, beta-carotene, and seeing light through vision.
ID: 201-29-1643
23(A)