Calcium carbide is a chemical compound with the formula CaC2. It is primarily used in the production of acetylene gas, which is important for welding and cutting metals. When calcium carbide reacts with water, it produces acetylene and calcium hydroxide. This compound is also utilized in the manufacturing of various chemicals and as a ripening agent for fruits, particularly bananas. However, handling calcium carbide requires caution, as it can be hazardous if not managed properly.