Used primarily in the production of acetylene gas, which serves as a fuel in welding and cutting metals. When combined with water, it generates acetylene, making it valuable in portable lighting systems, especially in areas without electricity. Also utilized in the steel industry for desulfurization of iron and steel. In some agricultural practices, it is used to ripen fruits artificially. Additionally, it plays a role in the synthesis of certain organic compounds and chemicals like vinyl chloride and acetaldehyde.