Calcium carbide (CaC2), a chemical compound composed of calcium and carbon, is a hard, gray-black solid that has a wide array of applications across various industries. Its versatility stems from its ability to react with water to produce acetylene gas, a highly flammable gas used in welding, lighting, and the production of various chemical products. This article explores the main uses of calcium carbide, focusing on its production, applications in different sectors, and its role in modern industries.