Calcium carbide (CaC₂) is a pivotal chemical compound in the industrial production of acetylene gas (C₂H₂), a highly versatile and energy-rich gas widely used across various sectors including welding, chemical synthesis, metallurgy, and construction. This article explores why calcium carbide is the preferred raw material for acetylene gas production, detailing the chemical processes involved, industrial applications, advantages, safety considerations, environmental impacts, innovations, and future prospects. Richly illustrated with diagrams and process flowcharts, this comprehensive guide also concludes with a FAQ section addressing common queries related to calcium carbide and acetylene production.