1. It is used in the form of oxyacetylene flame for welding, cutting and cleaning iron and steel.
2. Acetylene is used for illumination purposes in hawker's lamps and light houses.
3. It is used for artificial ripening of fruits.
4. It is used for the production of several chemicals like acetaldehyde, acetic acid, ethyl alcohol, acetone, benzene etc.
5. It is used for the production of westron (acetylene tetrachloride) and westrosol (trichloroethylene), industrial solvents for rubber, fats and varnishes.
6. It is used for the preparation of vinyl chloride (CH2 = CHCI), vinyl acetate (CH2 = CHOCOCH3) and vinyl ethers (CH2 = CHOR) used in the production of plastics and artificial rubber. PVC (polyvinyl chloride), a commonly used plastic is an addition polymer of vinyl chloride.
7. It is used for the preparation of acrylonitrile (CH2 = CHCN) used for the production of synthetic rubber (buna N) and synthetic fibre (orlon).
8. It is used in the preparation of chloroprene and butadiene used in synthetic rubber industry.
9. It is used for the production of lewisite (CICH = CHASC2), a powerful poisonous gas.